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Operator
Good day, ladies and gentlemen, and welcome to the KAR Auction Services Third Quarter 2017 Earnings Conference Call. (Operator Instructions) As a reminder, this conference is being recorded.
I would now like to introduce Treasurer and Vice President of Investor Relations, Mr. Mike Eliason.
Mike Eliason - VP of IR and Treasurer
Thanks, Andrew. Good morning, and thank you for joining us today for the KAR Auction Services Third Quarter 2017 Earnings Conference Call. Today, we'll discuss the financial performance of KAR Auction Services for the quarter ended September 30, 2017. After concluding our commentary, we'll take questions from participants.
Before Jim kicks off our discussion, I would like to remind you that this conference call contains forward-looking statements within the meaning of the safe harbor provision of the Private Securities Litigation Reform Act of 1995.
Investors are cautioned that such forward-looking statements involve risks and uncertainties that may affect KAR's business, prospects and results of operations, and such risks are fully detailed in our SEC filings. In providing forward-looking statements, the company expressly disclaims any obligation to update these statements.
Lastly, let me mention that throughout this conference call, we will be referencing both GAAP and non-GAAP financial measures. Reconciliations of non-GAAP financial measures to the applicable GAAP financial measure can be found in the press release that we issued last night, which is also available in the Investor Relations section of our website.
Now I'd like to turn this call over to KAR Auction Services CEO, Jim Hallett. Jim?
James P. Hallett - Chairman and CEO
Thank you, Michael, and good morning, ladies and gentlemen. Before I walk you through my agenda for the call today, let me start by saying that I'm extremely pleased with our third quarter results, especially when you consider all the things that we found ourselves dealing with in the month of September.
In terms of the agenda today, I want to give you an overview of our consolidated performance, provide you with a summary of the impacts of hurricanes Harvey and Irma on the third quarter, provide an update on our annual guidance. And I want to talk about the acquisition of the remaining 50% of TradeRev that was completed on the 3rd of October and review our capital allocation activities and provide some insight into future capital allocation opportunities. And then I want to close with a brief update on our outlook for the remainder of the year. So let me get started with an overview of our third quarter results, where we saw consolidated EBITDA was up over 13% compared to the prior year.
Consolidated revenue growth was just under 7% and we were able to drive strong 46% incremental margins on this revenue growth, all of this contributed to a 14% increase in operating adjusted net income per share. And finally, our operations have generated significant free cash flow in the first 9 months of 2017.
As I turn to the business units starting with ADESA. ADESA's revenue grew 4% in the third quarter, volume was up 8%, driven by the 34% increase in the online only volume, offset in part by a 1% decline in physical auction volumes. I'm not surprised by this mix shift given the need for certain Texas and Florida markets to acquire late-model, low-mileage inventory quickly from around the United States to meet the immediate demand following the hurricanes.
I was also pleased to see that the online only in the physical revenue per unit sold were both up over the prior year. In our adjusted EBITDA, ADESA increased 9% and adjusted EBITDA margin for ADESA increased to 25.6%, up from 24.4% in the prior year.
Turning to AFC, AFC's revenue was up 10% over the prior year, despite a 6% decline in the number of loan transactions. The decline in loan transactions is also not surprising given the decline in physical auction volumes throughout the industry in the third quarter and the level of activity that we experienced with franchise dealers buying in the lanes in certain markets. Loan losses were only 1.1% of average loans outstanding in the third quarter. This is something that we've been talking about, the lower loan losses that we expected to have in the second half of the year, and now, you can see it in our actual performance.
And finally, I'll turn to Insurance Auto Auctions, where we saw adjusted EBITDA grow 18% on a revenue growth of 10% and strong expense control that saw SG&A down slightly from the prior year.
The strong third quarter results were despite the $4.3 million in net losses incurred related to the hurricanes Harvey and Irma, that I will talk about momentarily. Adjusted EBITDA margins at Insurance Auto Auctions were approximately 27% in the third quarter, driven by the continued strong incremental margin performance in this business.
Turning to the hurricanes, Harvey and Irma. The hurricanes did directly affect Insurance Auto Auctions. After the flooding receded in Houston, I took the opportunity to visit our sites in the area and I saw at firsthand the devastation of the property. I also took the opportunity to visit Florida recently, where there were significantly fewer total loss vehicles. It is obvious that many of the communities had extensive damage, but we saw a much less damage and less impact on our businesses in Florida.
I can tell you that I was truly inspired by the spirit and the energy of our people and how they rallied around each other to get through this hurricane season and the flooding. The energy that I've seen from everyone I met on the ground, we have an incredible team that is doing what I would call incredible work in the communities that were affected by these massive storms. Not only did we have the Insurance Auto Auction employees performing well, but we pooled resources from the entire KAR organization to assist with the events that were taking place.
We took employees from across KAR, who volunteered to work in Houston and continue to work in Houston with the IAA team. As you know, much of the heavy lifting in these markets and in these conditions occurs long after the press coverage stops.
So we previously committed to providing the direct impact of the hurricanes on our results to help investors analyze our financial performance. And I can tell you that, we received approximately 70,000 vehicle assignments related to the hurricanes. The influx of vehicles from these hurricanes require us to use temporary facilities, increase our labor force in the area that has been impacted, bring in transportation resources, primarily tow truck drivers into the area as quickly as possible to pick these vehicles up once they're assigned to us by the insurance carriers.
In the third quarter, we sold less than 1,000 hurricane vehicles, accounting for approximately $500,000 in net revenue. We incurred approximately $4.8 million in incremental costs in September that is directly related to the hurricane activity. Net-net, our results at Insurance Auto Auctions were reduced by $4.3 million in the third quarter due to the net loss incurred.
All of the incremental costs incurred at Insurance Auto Auctions were recorded as direct expenses and reduced gross profit. There is no doubt that the hurricanes had some impact on ADESA and AFC as well. Texas and Florida represent large populations and very strong used car markets. We had to cancel physical auctions, as the hurricanes hit land, where we also saw reduced activity in some of the physical auctions, not directly impacted by the hurricanes due to the lower buyer participation. And this is probably what contributed to lower physical volumes at the ADESA auctions in September.
On the flip side, we saw strong online only volumes in the third quarter, and specifically in September, as the buyers were obtaining high-quality inventory on the private label sites that we operate.
And we're always concerned about increased losses in our loan portfolio when independent dealers experience losses due to damage on their lots, especially during a hurricane or this type of event and I'm pleased to report that the losses in our portfolio are at a very minimal.
Looking forward, we expect to recover the net losses incurred at Insurance Auto Auctions as the hurricane vehicles are sold over the next 2 quarters. We will have increased revenue, increased costs and increased number of vehicles sold, but no corresponding increase in profitability.
Obviously, this means a minor drag on margins in the next couple of quarters. And I often get asked, why do we agree to provide these services for no profit, or in some cases, even at a loss? And I can tell you, the answer is quite simple, as I look at it. We are able to generate significant profits from serving the insurance carriers throughout the course of the year with their normal collision activity. And our focus during these catastrophic insurance events is to be the best business partners that we can possibly be when they're under pressure created by these events, that challenge their people, their operations and their bottom lines.
So, with that, I want to turn to our guidance for 2017. While we're not changing our guidance on adjusted EBITDA of $825 million to $850 million in 2017, we continue to expect to be above the midpoint of the range. We have increased our expectations for net income per share and operating adjusted net income per share. And I will let Eric provide more information on our guidance in just a few moments.
Now I want to turn to -- talk about the acquisition of the remaining 50% of TradeRev. Clearly, the industry is going more digital and TradeRev creates a digital wholesale venue. I also see the opportunity to expand our total adjustable market by getting a piece of the dealer-to-dealer market, that has never used auctions. And as you know, TradeRev is a tool that allows franchise dealers to sell more new cars, take more trade-ins with real-time money, and bottom line, it allows the dealers to make more money overall. This is just another channel for cars to change hands and I'm truly excited about the opportunities TradeRev provides for KAR. And it's now time to put the full force of all the resources behind the efforts that are going on at TradeRev.
Along with TradeRev, let me discuss other aspects of our capital allocation. Our capital allocation strategy has not changed. Our first priority is utilizing our strong predictable cash flows to provide a return to our stockholders through a recurring dividend. As announced last night, we have increased our quarterly dividend to $0.35 per share from $0.32 per share. After allocating capital for our recurring dividend, we think the best use of cash is the investment in strategic growth. We will continue to look for acquisition opportunities that provide long-term growth and accretive contribution to value. And at this time, we have no acquisitions that are imminent. Because of the consistent and the predictable nature of our businesses, we are confident in our ability to generate cash. This allows us to utilize capital consistently throughout the year.
We acquired $100 million of stock in the open market in the third quarter. This represented about 1.6% of our fully diluted shares outstanding and I expect to continue buying our shares in the open market in the fourth quarter as well. The number of shares and the timing are subject to the market conditions and we will report on our progress on acquiring shares following the end of the year quarter.
I believe our balanced and disciplined approach to allocating capital, serves our businesses and our shareholders well.
In conclusion, let me comment on our outlook. First, our businesses are well positioned for the fourth quarter and going forward, as we look at 2018. We will provide our outlook for 2018 in February with our year-end update. We continue to have strong supply of used cars for ADESA segment, which will be driven primarily by the off-lease in the repossessions. Dealer consignment will continue to face challenges at physical auctions, but I believe that our acquisition of TradeRev will provide us with an opportunity to serve the dealer-to-dealer market outside of the physical auctions. And our market-leading position in the online space will continue to be a key contributor to our performance in the fourth quarter. I believe AFC will continue to benefit from the improved credit performance. And Insurance Auto Auctions is in a good spot. They're well set up for another strong quarter, while moving the vehicles that have been assigned to us in the recent hurricanes, but also handling the rest of the total loss business. I would point to recent industry data that indicates that in the third quarter, 18.8% of all auto insurance claims resulted in a total loss. And historically, the percent of total claims resulting in total loss is highest in the fourth quarter of each calendar year. So this sets up very well for the salvage business in our fourth quarter.
And finally, we continue to be focused on controlling SG&A. We've had 2 consecutive quarters of strong incremental margins and we recognize that controlling SG&A is an important driver of our overall profitability and strong incremental margins.
So thank you for joining us today. I'm now going to turn it over to Eric for some additional comments and we'll be back to take your questions. Eric?
Eric M. Loughmiller - CFO and EVP
Thank you, Jim. Let me start by updating some of the details within our guidance that Jim has already covered. We have increased our expectations for capital expenditures in 2017 to $150 million from $145 million to reflect the acquisition of equipment used for hurricanes Harvey and Irma. We also have continued to execute certain tax planning strategies and have reduced our expectation for cash tax payments. We are now expecting cash taxes of approximately $140 million.
On a net basis, these 2 changes offset and we continue to expect free cash flow of $415 million to $440 million. We have increased our guidance for net income per share to $1.68 to $1.78. We have also increased our expectations for operating adjusted net income per share to $2.30 to $2.40.
The biggest impact on our expectations for the year is a reduction in our effective tax rate for the year to 34% from 37%. The reduction in our tax rate is directly related to how we executed the purchase of the remaining 50% of TradeRev. We utilized cash accumulated in Canada to acquire the remaining ownership of Nth Gen Software, a Canadian company and owner of the TradeRev technology. This permits us to significantly reduce U.S. taxes on income generated in Canada in 2017. Accordingly, we have changed our estimate for the effective tax rate for 2017.
While we are not prepared to discuss 2018 guidance on this call, I will let you know that this tax savings will not apply to 2018 income generated in Canada. Accordingly, I expect our effective tax rate in 2018 to be higher than the 2017 effective tax rate. Of course, this could all change if Congress acts on tax reform in 2018.
In addition to the impact of lower effective tax rate, our updated guidance also reflects improved performance at KAR and a reduction in the weighted average number of shares outstanding, as a result of our share repurchases. The TradeRev acquisition will have an impact on our 2017 income statement. We are in the process of completing the purchase accounting.
Our guidance for net income per share does not include a gain that will be recorded in our income statement relating to the valuation of our original investment in TradeRev. This gain is excluded also in determining operating adjusted net income per share, so it will not impact our actual results for operating adjusted net income per share for the year.
Beginning in the fourth quarter, we will consolidate the financial statements of Nth Gen Software into the KAR financial statements. The impact of TradeRev will not be material to the financial statements of KAR in 2017 and are contemplated in our guidance for adjusted EBITDA and free cash flow.
We provided commentary on our results of operations in the earnings supplement provided last night along with our earnings announcement, I want to highlight the strong incremental margins delivered by ADESA and Insurance Auto Auctions. Our incremental adjusted EBITDA margin at ADESA was 53% in the third quarter and Insurance Auto Auctions delivered incremental adjusted EBITDA margin of 43%.
Overall, for KAR, we delivered 46% incremental adjusted EBITDA margins in the quarter. Our focus on controlling SG&A is a primary driver of these strong incremental margins. We continue to see the power of the consignment business model in generating strong operating results and cash flows. Our balanced approach to capital allocation is also seen in Q3 activities.
We paid a dividend during the quarter, bought back shares in the open market and deployed capital for future growth by acquiring the remaining interest in TradeRev, all in the same quarter.
Overall, our third quarter was a clean quarter. Jim reviewed the impact of the hurricanes on our results, but I believe you can see this did not impact our ability to grow earnings and generate cash. We recently completed an analysis of the proposed U.S. tax reform framework and it confirms that KAR would be a significant beneficiary of corporate tax reform.
As we have mentioned before, for each 1% reduction in the U.S. corporate income tax rate, we will have $0.02 per share increase in our earnings and a $3 million reduction in cash taxes. The current framework being debated in Congress would provide this level of tax savings for KAR, if passed.
In September, we announced our plans to develop a new corporate headquarters. To give you some background, our current headquarters' lease expires in August 2019. As we near the end of this lease, we looked at our options, including extending the lease. Obviously, KAR has grown over the past 13 years while in our current headquarters and we have clearly outgrown our current building. The new headquarters will allow us to consolidate various corporate teams that are in locations outside our current headquarters and develop a facility that better facilitates how our people work and use technology today.
The total project is approximately $80 million, including the building, technology, furniture and fixtures and other infrastructure, including a parking deck needed to work efficiently and effectively. We have secured $17 million in city and state grants, which will offset this cost. Approximately $11 million of these funds are available for the construction of the building and the remaining $6 million is available after completion of the building. We will be leasing the building upon completion with an initial term of 15 years that is expected to commence in August 2019.
We've shared quite a bit of information with you on the call. So let me turn the call back to Andrew, our operator, to take your questions.
And again, I thank you for joining us today.
Operator
(Operator Instructions) Our first question comes from the line of Matt Fassler with Goldman Sachs.
Matthew Jeremy Fassler - MD
I have 2 quick ones. The first relates to the ADESA gross margin, which tracked better than we had expected. And looking at the seasonality of gross margin within ADESA, historically, Q3 tracks lower than Q2. That was not the case this year. And it didn't seem like the mix shift to online really changed all that much from what you had been seeing. So what accounts for the better underlying gross margin rate trends within the ADESA business?
Eric M. Loughmiller - CFO and EVP
Matt, this is Eric. Let me take that one. The mix shift is beyond online and physical. You also get a mix shift within the components of revenue at the physical auctions. And through this, we had a richer mix of revenue in terms of generating profitability. And when we filed our Q, you'll see the description is really along the lines of the net realization of fees, some improvement in performance in Canada, as the currency is -- the U.S. dollar has softened, and a number of things that have really helped the mix shift. And less dependence on things like transportation, which are pass-throughs. So that would account for that. And then second, as you know, we have had a real focus on cost control and SG&A, that also goes to the field in maintaining a labor force that's working on the volume that's in the physical auction. So I was really proud of the team and how well they did in controlling the labor costs in line with that volume that we had, which was down in the physical auctions.
Matthew Jeremy Fassler - MD
Thanks so much for that. My second question, hopefully a quick one, relates to total loss inventory. So you indicated that it was up 12 overall year-on-year and 9 percentage points of that related to the storms, ex that, up about 3. Now the increase in total loss inventory, ex the storms, is actually a bit more subdued than what you had been seeing. Does the industry somehow slow down its production of total loss inventory when there is a storm, in other words, keep other inventory out of the channel? Or is this a natural moderation in the rate of growth of total losses that was then offset by the surge that we saw from the storms?
James P. Hallett - Chairman and CEO
Matt, this is Jim. I think 1 quarter is certainly not a trend. And I think what you've seen in the third quarter was just the way the businesses, I would say, shook out. What I would get more focused on is, I'd focus more on the percentage of vehicles that we see that are being written off and that number continues to grow. I mentioned in my commentary it's 18.8%. We expect that fourth quarter is normally the strongest quarter. And if I reflect on that and take you back only 2 or 3 years, we were talking about total loss rates of 13%. So I think it's -- I look at it as more of an anomaly in the third quarter. Eric, would you want to add to that?
Eric M. Loughmiller - CFO and EVP
Yes, Matt, just a reminder. In the third quarter of last year, our inventory was up 22% over the prior year and in the fourth quarter, up 25% over the prior year. Those are strong inventory bills. So to be up even 3%, excluding the storms is quite a performance, given the strong growth that we had 1 year ago as well.
Operator
And our next question comes from the line of Craig Kennison with Baird.
Craig R. Kennison - Director of Research Operations and Senior Research Analyst
Really want to focus on TradeRev. I'm wondering if you could share what the key metrics are around dealer engagement so that we can track your performance? And then also address the competitive landscape, who else is in this kind of dealer-to-dealer space?
James P. Hallett - Chairman and CEO
Right. Okay, Craig, let me take that. First of all, when you think about TradeRev, it doubles our total adjustable market. If you think about the number of dealer vehicles that come to physical auctions, it's about 10 million vehicles in total. And there is another 10 million vehicles that typically don't get to a physical auction. So that's really not -- it's not just a case of another channel for the existing market, it's an opportunity to expand the market to a much bigger market. I can tell you that, as I look at TradeRev, as I've seen TradeRev initially and as I've continued to see TradeRev and the product that we offer, I absolutely think this is the best product of its kind in the marketplace. There are a number of other companies that are trying to get into this space. And we're seeing some new entrants, but I'm confident that number one, that we have the best technology. I'm confident that we have the best leadership in this area. And I'm confident that as we look at the amount of vehicles that are being transacted on a mobile application right now, I'm confident that TradeRev is in the leadership position and I really want to try and grow that leadership position as much as I can, as fast as I can. I've shared with you before and I'll share with you again, that this really resonates with me, because when I take myself back to the days that I was a dealer, I often think of, if I'd had a tool like this, number one, how many more new cars could I have sold, because I was able to get real-time information on my trade-ins. And the bottom line is, how much more money could I have made as a dealer? And this is not a product that we really have to sell very hard. This is a product once we introduce it the dealers, this is a product that they're very, very interested in knowing how they get signed up on. It's just a question of us getting rolled out to these markets as soon as we can. And then, the final thing I would mention is that having 100% of this company allows us to bundle the other KAR services with it. For example, on the TradeRev app, we can now provide AFC financing. We can provide CarsArrive transportation. And it gives us complete control of the entire business, which I think, puts us in a better position to drive it going forward. So I hope I've answered your questions, unless there's anything else.
Craig R. Kennison - Director of Research Operations and Senior Research Analyst
(technical difficulty)
James P. Hallett - Chairman and CEO
I think I lost you.
Eric M. Loughmiller - CFO and EVP
Craig, we're not hearing you.
Operator
And our next question comes from the line of John Murphy with Bank of America.
John Joseph Murphy - MD and Lead United States Auto Analyst
Maybe just a follow-up on TradeRev, I mean, so as you are looking at this, I mean, is this complementary to the physical auctions and your online efforts and really goes after the sort of the wholesalers in the market and those would be the folks who will be disintermediated? Or do you think that this may also eat away, potentially, the physical and online business that you have right now?
James P. Hallett - Chairman and CEO
There is no question that it fits into our online strategy and our digital strategy. I think that as we look at this business, we know -- again, to repeat John, we know that we can expand the market. And we know that it does displace -- I believe, it does displace the wholesaler. If you take today, many dealerships still operate when they get a trade-in and they don't really know how to value the trade, they get on the phone, and as you know, and they phone their favorite 4 or 5 wholesalers and they get a number on the trade. And as I say, the wholesalers controlling their gross profit and controlling the amount of new cars they sell. And they're not always getting the best number because the wholesalers got to eat too. So at the end of the day, what you've got here is you're getting the best money available in the market today, real live money, that's committed and allows you to go ahead and make your deal. And as you get that instant appraisal coming in, it allows the dealer to know what his gross profit is from the moment those prices start rolling in, does that makes sense?
Eric M. Loughmiller - CFO and EVP
And John, let me add. In 2011, we acquired OPENLANE. There was clearly an emphasis, can be expand beyond, call it, off-lease and commercial vehicles. And the truth is, this is the product that does that, not the OPENLANE system itself. And I think that's what's important, is we believe there is an opportunity to sell dealer-to-dealer cars online. Jim, do you have anything to add to that?
James P. Hallett - Chairman and CEO
John, the other thing that I want to add to that is and it goes to maybe your question as well is this is just another channel. Again, we've been telling you for years that we never want to dictate where a car sells. We believe that our responsibility is to provide the best markets, the best channels, the best platforms and then, let the market and the customers decide where the car should be bought and sold. And so as I think about developing multiple channels, this is just another channel, but it's a channel that gets you access to another 10 million vehicles. And if we get some slice of that market, I like the potential outcome of that.
Eric M. Loughmiller - CFO and EVP
In terms of while we'll report this, we're still working on all of that as we just completed it. But I'm expecting that this volume will get reported on our online volumes. And this will become the dealer channel and the OPENLANE system or the private label will be the commercial channel and that will be the mix between the 2. And the revenue per unit is a little bit higher on this dealer channel through TradeRev than it is on the commercial channel within the OPENLANE environment.
John Joseph Murphy - MD and Lead United States Auto Analyst
It seems like it makes a lot of sense. Second question just on the conversion rate, 61.3%, that was -- it was a little bit higher than we were looking for. I'm just curious if that was solely a result of a higher mix of institutional vehicles as we think about the lease tsunami that's coming in the next 2 years? Do you think that, that will actually increase over time and actually make these physical auctions that much more profitable?
James P. Hallett - Chairman and CEO
I'd say 2 things, John. One, I would agree with you -- your statement that there was a richer mix of these off-lease vehicles, which tend to have a higher conversion rate. The other thing I would point to is I'd point to the storms. The hurricanes definitely drove wholesale activity, which drove retail activity. No one really knows what the real number of cars lost in that Houston and Florida markets were. We've heard all kinds of estimates. But I can tell you that for sure, I'm confident -- I feel confident that there's hundreds of thousands of vehicles that are needing to be replaced, and I think that had an impact on conversion as well. But going forward, I would expect that these commercial accelerators, with these off-lease cars coming, they're not interested in stockpiling them. They want to move these vehicles through the system and I'm hopeful that conversion rates can stay relatively high here.
John Joseph Murphy - MD and Lead United States Auto Analyst
Okay. And then just lastly, Eric, I mean, the provisions on AFC were on the low side. Just curious, how [stable] do you think that is? And as we look forward beyond maybe the fourth quarter and into next year, the state of your dealers that you are working with in the 4 plane lines, do you think things are tiding up there and you should expect better performance may be going forward?
Eric M. Loughmiller - CFO and EVP
Yes, John, that's a good assessment. Yes, the portfolio is in very good shape. There is a bit of seasonality. We typically will have a little bit more, but again, fairly consistent with what we had in third quarter is how I expect it to be, as I look forward. We said 1.75% to 2.25% loss rate for the year. We're still above 2%. So I actually -- I'm anticipating that coming down even a little bit more in the fourth quarter and we'll have a good result. We'll give you some guidance as we talk about it in February, but yes, I'm expecting us to continue at these lower loss levels looking into 2018 right now.
James P. Hallett - Chairman and CEO
John, I would just add to Eric's comments that, number one, we're going to continue to maintain our discipline with the portfolio. We're not going to chase the market, but we're going to grow with the market. And I believe that even as you take a look at that portfolio, it was down 6% in terms of volume, but if you look at the revenue per loan transaction, it was at $174. So again, let's not chase the market, let's maintain our discipline and let's grow with the market. So if there's an opportunity there, we'll take advantage of that opportunity without chasing it.
Operator
And our next question comes from the line of Ryan Brinkman with JPMorgan.
Ryan J. Brinkman - Senior Equity Research Analyst
Could you please just discuss the driver of the 3% lower ARPU in the ADESA business? I'm guessing, it has more to do with the increase in the percentage of vehicles sold online only. But maybe you can also talk about what's happening with used car prices? What was happening in July and August in 3Q prior to the hurricanes? And what's been happening since the hurricanes? And where do you think used car prices might go?
James P. Hallett - Chairman and CEO
Okay. There's a lot there, Ryan. I'll try and cover it. So I think in terms of the revenue, I think, it's really the mix of vehicles, that we're speaking to. And then, where are we going next?
Eric M. Loughmiller - CFO and EVP
Let me add before you go on. On the mix of vehicles, our physical auction ARPU was up and our online ARPU was up, but the average is down. The 3% you're citing, it's just the mix between the 2. We don't even look at those as an average. It's a historical number that I continue to report. They are 2 separate numbers and I would prefer that we start focusing on those separate numbers to get to what's happening in the business. So revenue per unit was up on both channels.
James P. Hallett - Chairman and CEO
And Ryan, sorry, to the rest of your question. You talked about used car prices. We said that we were expecting over the course of the year that used car prices would dip somewhere in the range of 3% to 5%. We're very much in line with that 3% to 5% drop. And I can tell you that as a result of the storms again, the prices actually picked up a little bit in September. So prices, how you think have been rather favorable as we line it up with our expectations throughout the year.
Eric M. Loughmiller - CFO and EVP
Let's not forget that in 2018, we have another 400,000 additional lease terminations compared to '17, that will continue to put that pressure on us.
Ryan J. Brinkman - Senior Equity Research Analyst
Very helpful. And then just finally on TradeRev. There have been a couple of questions already. But just curious, the decision to purchase the remainder now might have anything to do with your desire to expand internationally in an asset-like way. Maybe give us a little bit of an update on what some of your overseas trials have been doing like (inaudible) U.K., et cetera?
James P. Hallett - Chairman and CEO
Yes. So it wasn't the absolute driver. I mean, the driver was to get complete 100% control of this business and to really put the resources together and as I say, to bundle the services and to get to that, that expand the total adjustable market, those were the drivers. But there is no question, this business, as we've reported earlier, has done very, very well in Canada. And to your point, Ryan, we do have a number of pilots going in the U.K. and those all are proving to be, what I would call, successful, in terms of how the customers are receiving the results. And we can definitely do things, not only in the U.K., but this is a product that pretty much works anywhere in the world.
Operator
And our next question comes from the line of Gary Prestopino with Barrington.
Gary Frank Prestopino - MD
Eric, just a couple of quick questions on some of the numbers here. Based on the D&A and the interest expense metrics that you give us for putting our projections together, it looks like sequentially, there is a big bump up in interest expense and there is a big bump up in D&A. So unless I'm wrong in what I'm reading here, is there a reason for that?
Eric M. Loughmiller - CFO and EVP
Well, both are impacted by -- well, the interest expense is impacted by the refinancing, and in terms of our guidance, some assumptions of a rate increase that may or may not happen. It looks like there is a high percentage likelihood in December. On the D&A front, it really is -- the numbers are going up because every time I do an acquisition, I end up with more D&A, and including acquisitions like TradeRev. We also have more assets being placed in service. Some of which will have a shorter life as they relate to things around the hurricanes, those will have some assets with longer lives. But the use of that is fairly short, 1 year or a little bit more in some cases.
Gary Frank Prestopino - MD
So I guess, what I'm leading to is that, I don't know -- you're not given anything for 2018 but those levels in Q4, they're probably good proxies for 2018?
Eric M. Loughmiller - CFO and EVP
Let's wait till I give you the numbers in February. And the reason I'm hedging a little bit on that, Gary, and this is for everybody, we have some long-lived assets that are beginning to roll off from the purchase accounting in '07. And so I'll give you those numbers in February, but there are probably some offsets that come up next year.
Gary Frank Prestopino - MD
Okay. And then the last question, I mean, there's been a lot of questions asked about TradeRev. But I seem to recall, as far as the revenue model, when you first bought it -- talking with you -- first made the investment, that it wasn't so much a success fee business as much as it was a price discovery business, is that correct? Or have you moved it to a success fee business?
James P. Hallett - Chairman and CEO
No. There's no question. I mean, it's a price discovery, but it's a success-fee based. There is no question about that. And I think, Gary, we also told you that the opportunity, the revenue opportunities were somewhere between what we do online and somewhere between that in the physical auction.
Gary Frank Prestopino - MD
Okay. So it is a success fee business then if you sell a car through the system, you get paid for it?
Eric M. Loughmiller - CFO and EVP
It's predominantly success fee. There are subscription fees and there are some bidding fees that would apply if a car is not sold, but it's predominantly success fee.
Gary Frank Prestopino - MD
Does the seller or the buyer pay or both?
Eric M. Loughmiller - CFO and EVP
Well, it's primarily the seller, but the buyer will generally subscribe whether we charge them for that as we're introducing it to the market, the rates might be different, but that's a subscription model to be on the system.
Operator
And our next question comes from the line of Ben Bienvenu with Stephens Inc.
Benjamin Shelton Bienvenu - Research Analyst
I want to ask about the grounding dealer volume, continues to be really strong, up almost 19% year-over-year against a pretty substantial growth rate in 3Q of last year. I'm wondering kind of the key drivers behind that? And to what extent replacement demand stemming from Hurricane Harvey and Irma in the quarter drove that grounding dealer rate higher?
Eric M. Loughmiller - CFO and EVP
Ben, you're correct on 19%, but it was up 22% in the second quarter, 16% in the first quarter. It's been a trend we've seen. And I really think it's the programs being put together by the captive finance companies to incent dealers to buy a residual with some assistance.
Benjamin Shelton Bienvenu - Research Analyst
Okay. Fair enough. And then, shifting gears to AFC, the revenue per loan transaction increasing pretty substantially ex credit-off provisions, you said due to higher average loan balances. Can you talk about kind of what you're seeing there? Why you're seeing higher balances? And how sustainable you think this is?
James P. Hallett - Chairman and CEO
Yes, I think it goes back to the richer mix of cars that we talked about. You've got so many of these off-lease vehicles come in. And as you know, the average car -- and these are rough numbers, the average cars in the auctions -- just around $10,000, but if you take the average lease cars being sold, it's more like a $17,000 car. So that's what's driving that.
Operator
And our next question comes from the line of James Albertine with Consumer Edge.
James Joseph Albertine - Senior Analyst
I wanted to ask, with respect to the storm activity again, not to dwell on this point, but you've got a few playbooks historically, right, Hurricane Sandy, Hurricane Katrina and so forth. I wanted to understand, you mention that no one really knows how many total loss vehicles are out there at this point and there are likely still claims being assessed and vehicles that will come back in the future. But from here looking out, is it generally no surprise, as I would imagine, with respect to total loss vehicles going up significantly in the months of October and November. In your experience, is that a fair point?
James P. Hallett - Chairman and CEO
I'm sorry, I want to make sure I understood that. There was no surprises.
James Joseph Albertine - Senior Analyst
You're saying 70,000 vehicles that You should have been asked to deal with. I mean, materially, do you see that number going up significantly from here? Or do you feel like that's a pretty baked-in number?
James P. Hallett - Chairman and CEO
No. We feel that's a good number.
James Joseph Albertine - Senior Analyst
Understood. I appreciate that. And then -- and if I may, when you think about physical and online channels, is there any -- and I think in the past, you've maybe given some color with respect to sort of gross margins through -- in individual channels or even to some degree, if we can ask sort of EBIT dollars per unit in online versus physical. Is there any color you can provide to help us sort of understand that better?
Eric M. Loughmiller - CFO and EVP
Only, Jamie, that there is less dollars of revenue. We give you the revenue number. It's a very high margin business in the online only channels. And -- but it's only generating, excluding ADESA Assure, it's $112 per car sold as compared to the physical channel, which is generating -- I'm looking at my cheat sheet, $781 per car sold. And so far more dollars. Here's the way to describe it. The physical auction, you're going to be much closer to my average margin at ADESA. It's going to be in that 40s. And on the online auction, it's a technology-based business that's going to have gross margins and I'm talking gross margins that is going to be very high. I typically say over 70% as a guide. So that's kind of the relative magnitude. The SG&A, split it. I mean, there is SG&A in all of our businesses. So it really comes down to the relative magnitude of the revenue is probably more important than what is the margin percent. Does that make sense to you, Jamie?
Operator
And our next question comes from the line of Bob Labick with CJS Securities.
Robert James Labick - President
I wanted to start with ADESA. Can you -- do you have enough capacity for your ancillary services at your existing ADESA locations given that there is obviously a lot more off-lease vehicles coming and they tend to be higher utilizers of the ancillary services?
James P. Hallett - Chairman and CEO
That would be a "yes", Bob, and we are looking forward to the opportunity.
Robert James Labick - President
Excellent. And then just shifting to IAA, can you give us an update on your land acquisition strategy? Or where you stand? You talked about in the past growing your acres and improving utilization at yards. How has that been going? Is there more land to come? Or where do you stand in that process?
James P. Hallett - Chairman and CEO
Bob, we talked about land, and land isn't a once-in-a-while thing, it's kind of a everyday thing that we deal with. And we continue to acquire capacity as we need it. In some cases, we're expanding. In some cases, we are relocating. And in some cases, we're merging. So land is -- we have a staff that's totally focused on the acquisition of land and the management of land and it's just something that is just part of what we do. Eric, do you want to that?
Eric M. Loughmiller - CFO and EVP
Yes. I mean, not surprising, we're adding hundreds of acres per year, every year. Maybe, we'll be more specific on quantifying that in the year-end call.
Operator
And our next question comes from the line of Chris Bottiglieri with Wolfe Research.
Christopher James Bottiglieri - Research Analyst
I had a question. Just wanted to think through kind of IA volumes. I get the sense that accident rates are probably trending either down slightly to up slightly. It looks like the total loss rate sheet is probably contributing mid-single digit to high single digits. So maybe just help explain kind of what's bridging the gap between the 2? Because it looks like both of your peers kind of driving collectively double-digit growth. Are you doing more in noninsurance or are there just more maybe noninsured vehicles that you're doing that are -- I'm just trying to think of what the drivers are?
James P. Hallett - Chairman and CEO
So I don't think it is necessarily growing the non-insurance business. I think it's -- as we take a look at the drivers of that business, it's really the accident rate going up. And then, as you think about proceeds, all the drivers of proceeds, the things that we think about, we think about the international buyer base. We think about commodity prices, steel prices. We think about world currencies compared to the U.S. currency. We think about replacement parts and the cost of repairs. All those things are very much tailwinds for IAA as we look at that business right now.
Eric M. Loughmiller - CFO and EVP
And Chris, miles driven is increasing, even though you made a statement that frequency is declining in auto accidents. The car park is growing so there is actually more cars to wreck. We're seeing more total losses. And not surprisingly, if you look, our purchased vehicles at IAA is down to 4%, which tells you, there's a lot of insurance vehicles, because if we were looking for volume, that'd be the first place I'd look as a trend, is are we supplementing with purchased vehicles and we're not needing to, we have enough to do with servicing the insurance companies right now.
James P. Hallett - Chairman and CEO
Chris, one other area that I'd point to is the age of the car park. You've got a car park that's still average age somewhere in the -- in order of 11 to 12 years. And as you have this aging car park, the insurance companies are going to have a much higher tendency to write these cars off, rather than think about repairing them.
Christopher James Bottiglieri - Research Analyst
That makes a lot of sense. I want to switch over to physical. I think previously your outlook was kind of like low single-digit growth in physical auction volume. Now I understand with everything with the hurricane and acceleration online, if I ascribe all the acceleration of online growth came from [difficulties] of the storm, it's about a 3-point headwind. But I guess, maybe there was a lot selling days and maybe less units meet the rate of auction as dealers can reallocate inventory. So kind of piecing this altogether, what do you think the right outlook is for physical as you kind of look out maybe a couple of quarters from now?
James P. Hallett - Chairman and CEO
Yes. So I would tell you that we would still maintain low to single-mid-digit growth at physical. And let me give you a few thoughts on why. As you take a look at the business going forward, our visibility is very good for the next few years and then maybe some, where we say it's going to be driven heavily by these off-lease cars and the repossessions. If there's been no slowdown in leasing to speak of, consumers are continuing to finance cars. And so, we know that these volumes are going to come, it's going to drive the market. And I think the online channel can grow, but I think it can only absorb so many cars. And I do believe that these cars will get to physical auction, and we can see that low to single-mid-digit growth, where we also pick up the ancillary services as well. So I think just based on the visibility that we have, and what's going on in the marketplace, we feel pretty comfortable with those numbers.
Christopher James Bottiglieri - Research Analyst
Got you. Okay. Just one quick unrelated one, more theoretical. I know most of your capabilities are in the B2B market. But now that you have this TradeRev app and the technology from that, could you ever under any scenario envision yourself getting into that C2C market? Maybe what are the kinds of friction points that prevent you from doing that?
James P. Hallett - Chairman and CEO
Yes. Well, I've learned to never say never and I've learned to get out of the prediction business, if you've been around. So I would say that we're very focused on the dealer being our customer. We're focused on the wholesale business and that's where our strategy is focused and will continue to be and I don't see that changing anytime soon. But with that said -- as I said at the outset, never say never.
Operator
And our next question comes from the line of Bret Jordan with Jefferies.
Bret David Jordan - Equity Analyst
Did you say anything about cycle time impact from the hurricanes given the volume or the insurance processing time split?
James P. Hallett - Chairman and CEO
Bret, I just mentioned that we're probably going to sell the balance of the hurricane cars over the next 2 quarters.
Bret David Jordan - Equity Analyst
Okay, great. And then on TradeRev, I guess, as we measure the traction, is there a conversion number, the number of cars that are shown amongst the dealers that are selling versus where we were? Say, the more dealers participate, your conversion might go up?
James P. Hallett - Chairman and CEO
Yes, we certainly track conversion and we don't spell that out. But certainly, it's something that we keep a very, very close eye on and it's a very important metric for us.
Eric M. Loughmiller - CFO and EVP
And just in terms of color, it actually converts very similar to what we see in the physical auction in terms of cars that run across the lane, how many are acquired. It has -- it's probably closer to that than it is to other online venues that might have low conversion rate because there is a lot of price discovery and listings. It's a very...
Bret David Jordan - Equity Analyst
So do you think you'd report going forward or...
Eric M. Loughmiller - CFO and EVP
No, I doubt it, Bret, to be honest, but again, we've given you the flavor. It converts at a much lower rate than a commercial car.
Operator
And our next question comes from the line of Matthew Paige with Gabelli.
Matthew T. Paige - Research Analyst
Just a couple of quick ones from me. I guess, with regards to buying the rest of TradeRev, could you remind us if ability to purchase, that was a part of the original purchase agreement? And then to follow-on to that, why was now the right time to buy it?
James P. Hallett - Chairman and CEO
Right. So we did have a original purchase agreement to buy the second half or to buy the other 50% of that. And why now is that, I would tell you, it just made sense to us for a whole lot of reasons. Number one is, we're very focused on digital. We know there is a transformation taking place, know more and more people are doing business over their mobile phones, whether it'd be in the car industry or other industries, as transformation continues to take place. And the other thing was really to -- when you have 100% control of the asset, you're able to do more things with it. We're able to apply, as I say, the resources and bundle our other services and just directly manage that product better than you could with a 50% partner.
Matthew T. Paige - Research Analyst
Great. And then lastly from me, are you able to quantify or provide some directional guidance as to how much more costs are left related to the hurricanes? I would assume that actually sell-through units, you'll need less land and transportation cost would also come down?
James P. Hallett - Chairman and CEO
I think the cost that we outlined for you are the costs that we expect. It's primarily the land that's in place. We're not going to getting any more land. The transportation is taking care of itself. The labor is not going to be anything more than what we've shared with you. And so, I think, the money is spent. As we said, the money went into direct expenses in the third quarter, and now, as we sell off those cars, we'll bring that revenue back in.
Eric M. Loughmiller - CFO and EVP
Yes, we'll have corresponding revenue, Matt. Again, we'll see where it ends up after a couple of quarters, but we're saying we're pretty comfortable we can recover the September loss.
Operator
And I would now like to turn the conference back over to CEO, Mr. Jim Hallett, for closing remarks.
James P. Hallett - Chairman and CEO
Good. Well, thank you. And I want to thank everybody for being on the call today. And as I say, I continue to appreciate your interest in our company and your interest in our business. I can tell you that the management team feels very good about the business, feels very good about not only 2017, but the visibility we have and where we're heading here in 2018 and over the course of next few years. We think our businesses are all performing well, all set up to perform well. And we look forward to continuing to grow the business and continuing to satisfy our investors with the investments that we have going forward.
So with that, thank you for being on and we'll look forward to talking to you in the New Year.
Operator
Ladies and gentlemen, thank you for participating in today's conference. This does conclude the program. And you may all disconnect. Everyone, have a wonderful day.