Summary of Significant Accounting Policies - Recently Adopted Accounting Pronouncements (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use asset	$ 31,176		$ 0
Operating lease liability	34,592
Lease liabilities	$ 22,052
Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use asset		$ 45,076
Operating lease liability		44,807
Finance lease right-of-use asset		3,791
Lease liabilities		$ 4,378