XML 62 R33.htm IDEA: XBRL DOCUMENT v3.20.1
Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2020
Tax Credit Carryforward      
Effective income tax (24.40%) 16.70%  
Percentage of alternative AMT subjected to sequestration   6.20%  
Scenario, Forecast      
Tax Credit Carryforward      
Change in alternative minimum tax     $ 94,800
Alternative minimum tax     $ 379,300