Larry, thank you. I'll answer your first question then Matt Korenberg can comment on process evaluation. So the business, people who know Ligand know this leadership team. I believe we're creative. We look at opportunities. Obviously we focus on excellent science and excellent partner relations. That is our craft, our core business, but when it comes to optimizing value, we're looking at M&A ways we can acquire and build. This is a very unique transaction in my experience at Ligand obviously we've never split the company but we're doing it as we've said in our have remarks with a sense of confidence and that this is the right decision at the right time. What's driving it is the success of the business and also a real belief that we have an opportunity here. The success we've described across, the whole business we're doing well, but specifically as we look at the diversity and royalty, the royalty momentum, the new approvals, some recent acquisitions that is further supporting the royalty business, it's a great business. We are licensing technology, we're driving products and that business, the last three, four, five quarter has really emerged as a great growth position right now. The OmniAb business, it's not a surprise as in the last month or two what we have, but no doubt our decisions, our acquisitions to fortify that platform the partner success, the last, several quarters last year or so through the pandemic, especially we have emerged with confidence that we have got a very, very strong technology leading platform. So it's out of success that we see this. We've got a board we've got management team. We have the resources to run two companies. The other part is if you have opportunity we believe by having focus teams that look at R&D investment, that look at capital allocation that can position focus compelling investor profiles for investors, we think the opportunity will better serve our investors to create and grow value out of two companies versus one combined. So that's where we are. We have been planning, there are different ways to do this, but with, I think a lot of thoughtful work and decision making, we feel very good about this circumstance. Matt, I'll let you comment on valuation.