Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Recent Accounting Pronouncements) (Details)

v3.20.4
Summary of Significant Accounting Policies (Recent Accounting Pronouncements) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 01, 2020
Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Allowance for credit loss impact   $ 5,541
Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Allowance for credit loss impact $ 5,500