Sure. Well, about a third of NDS is -- it's focused on third-party rigs and therefore given what's happened with rig count, although we think the offering is gaining traction in the broader market, there is some churn going on and therefore it's going to, it will affect our growth in the -- in the first quarter. But for the year, we do believe we're going to keep going. I think there's a couple of bright spots here. The first one is, the casing running portion of NDS, I think you probably not realized it at this point, but TRS has gained market share in both the Gulf of Mexico and it is now the second biggest international tubular operation going on and we have a strong emphasis on execution and I think our margins are actually best in class when measured against the public people available. So that's really been a good story. As you know, back about a year ago, we had a pause on this because we were waiting to improve our value proposition with integration. We now have it. We're moving more and more of our jobs to the integrated approach away from conventional and that's accounting for some of the margin gain you're seeing, even on the same job count, it's increasing margin. So we think that story is going to continue, because the value of proposition with the customers is compelling. On directional drilling, there the story is also kind of interesting, if you think about the marketplace in general, we actually believe that if you think about the drilling -- directional drilling services, I think it's in a -- in a seismic shift arena right now. I think four or five years now, it's tough to look at anything like it is today. I think what's going to happen is the use of what they should combined which is downhole -- who's going to -- sorry for the interruption. The use of the automation combined with the downhole, I think is making a different value proposition available to the operator. I think also that the historical stronghold that the big four had on directional drilling, both in the US and international is being challenged. If you look at the US, for example, the Big four used to count maybe five years ago for 50% of the Lower 48 MWD market, now it's a -- It's down more than half of that number today. And so, I think the kind of offering that we now have in place is an offering that has substantial growth opportunity. So with all that, I think looking forward throughout the year, I think we're looking at fourth quarter to fourth quarter -- Q4 2019 versus Q4 2020 growth of about 20% or so.