Description of the Business and Summary of Significant Accounting Policies - ASU 2016-02 (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
Assets and Liabilities, Lessee [Abstract]
Right-of-use asset			$ 100,900
Straight-line lease liability			100,100
Operating lease liabilities	$ 107,569	$ 106,331	100,900
Right-of-use assets, net			$ 800