Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Recently Adopted Accounting Pronouncements (Details)

v3.20.4
Summary of Significant Accounting Policies - Recently Adopted Accounting Pronouncements (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Jan. 01, 2020
Dec. 31, 2019
Recently Adopted Accounting Pronouncements      
Retained earnings $ 876,660   $ 632,862
Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment      
Recently Adopted Accounting Pronouncements      
Retained earnings   $ 3,200