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Income Taxes (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax [Line Items]        
Net operating loss carryforward $ 193,500,000      
Valuation allowance increase 2,800,000      
Net deferred tax asset 111,283,000 $ 136,477,000    
Unrecognized tax benefits 4,924,000 3,962,000 $ 3,387,000 $ 312,000
Unrecognized tax benefits, accrued interest and penalties 300,000 400,000    
Accounts Payable and Accrued Expenses [Member]        
Income Tax [Line Items]        
Current taxes payable 7,300,000 38,200,000    
Other Assets [Member]        
Income Tax [Line Items]        
Current taxes receivable $ 44,200,000 $ 0