Annual report pursuant to Section 13 and 15(d)

Recent Accounting Pronouncements (Details)

v3.20.4
Recent Accounting Pronouncements (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Shareholders' equity $ 407,750 $ 298,600 $ 135,717 $ 177,922
Accounting Standards Update 2018-15 [Member] | Cumulative Effect, Period of Adoption, Adjustment        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Shareholders' equity $ 1,700