Kevin, good morning. A couple of things I would anchor on regarding margins. First and foremost, our business model has a fair amount of variable costs associated with it and we [flattened down] [ph]. I think I would highlight the fact that one, we were very much aware of what we saw being kind of the atypical vacation in July and we started flexing from that perspective our G&A quickly. And it was no surprise that the hurricane was on its way. In fact, we took the initiative to cancel many of the procedures, shutdown our facilities, but then flex our G&A accordingly. That in and of itself, I think because of our ability to use data and drive those decision quickly, did an influence margin, but what it did do is took away the headwind that you would typically see when it is being impacted from those type of factors such as the hurricane. But outside of that, I would point to a few things. One is, our G&A initiatives we've been investing in years are really just continuing to ramp up. I actually think our underlying margins would be even better if it wasn't for the current environment that we are in. As we mentioned, we now have almost all of our facilities on a standard data warehouse. We now have our entire HR functions on one HRS system over 90% of all facilities are on a single HRS system. These [Technical Difficulty] we've been making over the last several years, but they've all been staged along the way. This is the first year that you're seeing, kind of the full force and power of all these investments coming together, and kind of the long-term benefits that come with that. The second thing I would highlight for you is to keep in mind that we are doing much more acquisitions through this ValueHealth partnership arrangement we have, whereby we acquire a minority interest we take over 100% of management, so we get a management fee and we have the ability over time to buy up. That is so relevant, is that one, because of the way the accounting rules were, when those acquisitions occur, you get zero revenue, zero revenue associated with it because you have the inability to consolidate, but you do get the impact of the EBITDA. And so, you'll start to see a miscorrelation at times between what's happening with EBITDA versus revenue, but nonetheless the quality of that earnings is quite strong and the cash flow continues to be quite strong. And obviously to the extent we buy up to become a majority owner, then that will flip, but we will start recording 100% of the revenue. So, that's the other factor that's been affecting us, especially in this year as we continue to move down these partnerships that we've been building. Dave, anything you want to add on the margin front?