Annual report pursuant to Section 13 and 15(d)

Income Taxes - Unrecognized Tax Benefits (Details)

v3.20.4
Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]    
Balance, beginning of year $ 400 $ 1,600
Additions for current year tax positions 100 0
Additions for prior year tax positions 100 0
Reductions of prior year tax positions 0 (1,200)
Balance, end of year $ 600 $ 400