Your next question is from Charles Redding with BB&T Capital Markets.
Charles Edgerton Redding - BB&T Capital Markets: Hi. Good morning, gentlemen. Thanks for taking my question.
David P. Steiner - President, Chief Executive Officer & Director: Good morning.
Charles Edgerton Redding - BB&T Capital Markets: Perhaps just a follow-up on transportation, how should we think about the impact on Northeast landfilling volume from the lower transportation costs? And then with reduced diesel, is it fair to expect collectors to bypass closer incineration units really in favor of the longer haul sites, just based on price alone?
David P. Steiner - President, Chief Executive Officer & Director: Yeah, when you see the transportation costs go down, which is what happens with the fuel, you basically open up landfills that are further away, right? And so, we've actually seen pretty nice growth in our Northeastern landfills. I'm not sure that I'd attribute it 100% to the lower transportation costs, but we've seen nice volumes both in our Northeastern network and then in our Southern network. We would expect that – we'd expect that to continue into 2016. I always say, to a certain extent, low fuel prices are both good for the economy, but they're also good for our business.
Charles Edgerton Redding - BB&T Capital Markets: Great. And just a follow-up, with apologies, on energy services, can you be a little more specific in terms of those types of hauls that are seeing the most pressure from lower spending, and maybe too early to think about any nascent stabilization here year-to-date?
James E. Trevathan - Chief Operating Officer & Executive Vice President: The types of haul that are seeing lower spending – look, we haul – most of what we haul is drill cuttings. And then we haul some waters, we haul a little bit of NGL. So, clearly, the big piece that has declined is drill cuttings. But what's happened is, you're seeing these – the rig count has dropped off by 60%. So, they are not drilling. They may be leasing property, but they're not drilling nearly as much as they were a year ago. And so, as a consequence, the drill cuttings coming out of those holes are not moving to our landfills. So, I think that answers your question. It is – because it's the majority of our energy services business, that is what's causing the biggest drop-off.
Charles Edgerton Redding - BB&T Capital Markets: Great. Thanks for the time.
David P. Steiner - President, Chief Executive Officer & Director: Thank you.