Yes. I think to answer the first part of your question, Dan, first piece of it was -- look, we are seeing a little bit of a slower start to the year, got a couple of challenges just recently actually with some of the cold temperatures, freezing up some logistics and we're working through that right now. We expect that might be a little bit of a cost to us in the quarter. But, we did see some, right out of the gate in the first couple weeks of the year, some slower pull from some of the markets. We don't see that that's going to continue. Foreign exchange, Matt said that over the past several quarters that started to become a little bit more of a drag. So, we think it's a little bit slower start to the quarter and the guidance we gave, but what I'm trying to contrast there is we got a lot of things coming at us for the rest of the year. The pricing actions that we know will take hold. We're building, we have some expansions that came on line. We see some strong pull from customers in our newest products. Some of our new commercializations; there were new products commercialized late last year that we feel have some good traction moving into the year. Later this year, 300,000 tons of capacity in paper PCC is going to be coming on line. So, there's a number of kind of forward, upward momentum that we started last year that will continue to take hold through the year that we think will offset kind of a slower start and continue to drive those earnings. As far as margins, we think at a normalized rate, this company, certainly at 15%, can I tell you that that's going to happen this year. I think as we see costs continue to go up, Matt mentioned, contractually, we're going to lag a little bit that. We see they might play it over for the second half of the year and I think will catch up. I think as we get to kind of average pricing, those normalized margins will get back to 15%. So, do I see the end of our cost inflation? No, I haven't seen it yet. I think that's going to continue through the first half. But should that go over? I think, we start with our pricing actions, operating costs structure we'll get back to that kind of normalized rate of 15%.