XML 111 R95.htm IDEA: XBRL DOCUMENT v3.20.4
Income Taxes (Change in Valuation Allowance) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at beginning of year $ 11,581 $ 14,483 $ 15,422
Additions 3,357 0 0
Deductions 0 (2,902) (939)
Balance at end of year $ 14,938 $ 11,581 $ 14,483