Sure. That's a good question, Tim. I would say, if you look at the margin progression, let's just say Q3, first of all, yes, it prints 370 bps. If you remember, we had 330 bps. If you remember, we had a loss last year during this time frame that makes it a little bit of an easier comp, but still great performance from a margin expansion perspective, particularly when you look across the years. So if you look at this chart, you can see sort of steady upward progression in the business. And this is driven by really 3 big things. The first and foremost has been our AMS/DRS mix improvement across the business. That's certainly been helpful. Those are accretive margins and certainly allow us, as you mentioned, to decapitalize the business and make the business more dynamic. The second has been a more disciplined pricing posture that we've taken that maybe historically we had not. And we've been very disciplined since coming out of the pandemic, frankly to, just to make sure that we're not only covering our costs, but also improving our margins and getting the right value with customers on both sides. And then lastly, really has been our operational execution. And I have to applaud our North America team that really has been working hard and showing real improvements operationally, both in service quality, service timeliness and then, of course, I mentioned safety. And any time you see safety improvements, that's an indicative measure of how well we're running the business or how well the business is being run, let's say. And we think that that's a good one for investors to understand that we've got a good foundation to continue to go forward. Our incremental margins are going to be anywhere from 20% to 30%, Tim. That's kind of how we think about it going forward. But there's not really a -- we don't think it's really an artificial ceiling here in front of us. And we think there's still more room to go. I mentioned the 20% EBITDA margins in the midterm. To me, that's just an interim checkpoint of where we want to take the business because if you know this, and it's not without -- it's in the public domain, we actually have a gap in North America with one of our other traditional competitors, which gives me lots of confidence that we still got room to go and still run the business better, much less with this new business model on top that is decapitalized, that's more flexible, more dynamic and more value accretive for customers.