Walter M. Rosebrough, Jr. - STERIS Plc
Management
Sure. Great question. And particularly in capital, it's always a game of moving parts. I would say, first, in general, in-patient, everyone is working to reduce the length of stay or the patient days on the same amount of surgery. So, the procedure volume and patient day volume actually for the last 30 years hasn't matched up, because we have shrunken the number of patient rooms over the last 30 years by 20%, 25%, at the same time, we've grown procedures significantly. So, it is indeed clear that when hospitals report patient days, that's very different from when they report procedures. The second issue you raise is in terms of where those procedures are going. Clearly, we are seeing more and more of those procedures going into an outpatient setting, whether that be a hospital-based outpatient setting, or whether it be an ambulatory surgery center or other procedural center, like a GI center, that may or may not be on the hospital campus. And in very recent time, the last year, year and a half, we've clearly seen a significant expansion in that ambulatory setting. Again, it seems it go in cycles a bit. If you kind of look back over the last 20 to 30 years, there have been two or three cycles where ambulatory surgery centers grew very rapidly relative to hospital operating rooms, and that seems to kind of be going on right now. But in the long run, it tends to sort of work its way through as hospitals put their own "outpatient centers" either in the building or in another building where they can capture their customers. But we do see ambulatory growing relative to inpatient, if you will. And then what happens is you'll see a phenomena where you get two or three significant procedures, like when we start seeing heart, lung transplants, where even though it's only one procedure, that procedure takes six hours. That's very different from one that takes 30 minutes. And so, it's not just procedures, but volume of procedures and we watch those phenomenon.
Isaac Ro - Goldman Sachs & Co. LLC: That's helpful. And then maybe just a follow up on capital allocation, it's kind of tied to the prior question which is, you talked a little bit about wanting to both invest organically as well as through M&A. Could you help us frame some of the types of businesses where it would make sense to be adding to existing product lines versus getting into totally new categories, where you can either leverage your expertise or your channel to tap into a new vein of growth? I'm just kind of trying to balance going into something that's sort of directly adjacent versus kind of new product category all together?