So Tycho, it's Steve. I -- we're not seeing any increased competition in the pricing space, and I mean, any more than it usually is. We work as, you all know, in a very competitive market. We need to be efficient, and we're very focused on that. But we're not seeing any rouge companies out there who're doing anything untoward in the pricing area. So, I don't think that's changed in any -- to any great extent, certainly, over the last three to six months. In terms of fixed pricing or what we call outcome based pricing, we believe that our technology and our feasibility process is robust enough now to be able to enter into these sorts of contracts. And we believe there is some differential advantage for us and probably for all of the larger CROs versus some of the smaller and the midsized companies on the fixed and outcome based pricing. Because we do have not just the financial stability, but the processes, the applications, the systems to do our feasibility really well and to make sure we know exactly what we're getting ourselves in for, when we're budgeting this. So, we are open to that sort of approach. And as long as we take it very close, obviously, look at the particular program, particular project where we work with an alliance partner, we're certainly open to it because of the portfolio approach that we take. And that's a very important part of it. So, it's harder to do these things in sort of one-off -- on a one-off basis, much easier across the portfolio of projects, where you have a -- almost a commitment from your sponsor or from your partner of where this is coming in. So, we're open to it. We believe we can do them effectively. We believe there's an opportunity if we do them well, to improve our margins on those sorts of projects. So, I think, there can be positives for both sides of the equation there, although you really need to know what you're doing. And so, I'd say as a significant player in the industry, we feel like we're in a good position to do that sort of work.