Yes. Let me answer it two ways and then I'll put it over to John. Look, I think, James -- and we get the question a lot, I think it's part of the transformation that the company has gone through over the last year, last, I would say, five years, in particular, especially post I'd remind everyone of the investments that we made post tax reform and that we delivered on. Our intent was to accelerate the transformation to look much more like a technology company than what we had been before, which was certainly a perfectly well-functioning tech services business but more technology. So you hear a lot of what we say, but don't, I think, see the background of it as much. We deploy a lot of technology in the background. And I say this in many of the calls where today's tech service is tomorrow's technology delivered by a set of technology tools on the back end. And we feel really passionate about the ability to deliver service but service delivered through state-of-the-art technology. What's the point of all of that? The point of all of that is that if you can do that and if you can do it successfully, then you get margin expansion of the type that we have been driving. We think there's still a long road to go in terms of our ability to fully optimize and digitize everything that we're doing. And as a consequence, we challenge ourselves every year to look at a range of potential investments that can drive margin improvement balanced by investments that also drive revenue growth. So we're trying to play those off. And the short answer is, yes, I think if you were -- five years ago, if you said we'd hit 40%, and then we'd be talking about the potential to expand beyond 40%, look, I wouldn't have known that with precision that we were going to be there, but that's exactly where we're at. There may come a day where we say, "Hey, look, I don't think for the growth of the business, the level of investment we need to make in the business, we can really continue to leverage." But we're not at that point at this stage. I'll turn it over to John for comments too.