Yes. Erin thanks for the question. We indeed as you pointed out actually exceeded our plans, for the $200 million synergy costs take-outs, that we have announced at the time of the merger. And we achieved that sometime earlier in 2019. But we also announced at our investor conference in June that we were launching a new $200 million cost-elimination initiatives for -- which we named V22 for the next 3-year period: 2020, 2021, 2022, and we are doing this in order to take advantage of the new larger scale of our business. We're now at a phase of an inflection point frankly, where we see growth accelerating. And we have to make sure when this happens in a business that, we don't let costs creep up ahead of revenue or even at the same time or in line with revenue. At the same time, we got to support that growth. So it's a more complex on an equation to manage. And therefore, it's important that we have a specific program. And we do have a program office, with a full-time team, that's dedicated to running those initiatives, across the company. Those run the gamut from continued initiatives on procurement, on infrastructure optimization, whether it's real estate, IT systems. And of course the more complex aspects of automation, using bots and AI/ML tools within our own operations. Offshoring which continue scaling up our Philippines, our India, and our other offshore centers in Eastern Europe, in South America, to continue supporting the growth from those centers. And all of those, in combination, we expect to generate exiting 2022, $200 million of cost savings, which we believe is necessary to more than offset the headwind to margins, that we would otherwise have, if we did nothing else. And we believe that, that is going to be ramping usually, a smaller portion in the first year. Maybe I'm going to say 20% or so of that $200 million will come in 2020, and then, perhaps another 30% or so in 20'21, and then, the balance the last 50%, during 2022. So that's the best estimate we have here, on how this is going to ramp up. Thank you very much, Erin.