Yes. So we do have cloud infrastructure in many places around the world today to support our e-signature business. We have cloud platforms in Canada, U.S., Europe, the Pacific. So we do have a lot of it already, but that infrastructure is really supporting e-signature today. As we begin to deploy these new integrated TID solutions, adaptive authentication and risk analytics and then later in the year some of the new agreement automation offerings which will tie together e-signature and our identity verification capabilities. Those are all going to require, in some cases, new and in some cases expanded infrastructure for these cloud offerings. So in order for us to -- only to say, first of all, we have global interest in these new solutions, adaptive authentication and risk analytics, for example. In every region, we have customers that we're engaged with and talking about those products, those solutions. Obviously, before we can deploy those products or let those customers do proof-of-concepts and things like that, we need to put the cloud infrastructure in place. So that's a part of what's required. I would say, that's coming a little bit faster than maybe we originally thought. And the reason for that is, because of the amount of customer interest that we're seeing. You have to keep in mind that that infrastructure has to be in place and then there's a buying process, a buying cycle that takes place and then there's a deployment period that takes place and there is a ramp-up of volume on that platform. So we are using public cloud infrastructure for most of that. So there's an upfront investment that we need to make to enable our ability to sell these solutions. And that does run ahead of revenue initially. And then, after that, we do this in a way that we can then scale those platforms with demand. But there's a getting in price, it's sort of the cost to get started and that's what we're talking about. That's happening -- has already been happening in 2018. Mark, I think, referred to it in his comments. We are already seeing a significant uptick in cloud infrastructure cost in 2018 related to the intelligent -- sorry, Intelligent Adaptive Authentication product and the Risk Analytics that we just launched. So that will continue to build, I would say, throughout 2019, probably be a little more heavily weighted in the early part of the year. As you know, we have season -- look, not a seasonality but a sort of a pattern to our business over the kind of the revenues in the first half and the second half and revenues tend to be higher in the second half. So there's a little bit of -- there's certainly some pressure on margin in the early part of the year, just based on that infrastructure investment that starts to get a little better as we look at the second half.