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Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Operating Loss Carryforwards [Line Items]        
Income tax provision $ 0 $ 0 $ 3,463  
Increase (decrease) in valuation allowance 64,400 72,400 (22,700)  
Unrecognized tax benefits, accrued interest and penalties accrued 0 0 0  
Unrecognized Tax Benefits 16,838 $ 15,495 $ 13,243 $ 11,603
Federal        
Operating Loss Carryforwards [Line Items]        
Net operating loss carryforwards $ 591,200      
Net operating loss carryforwards expiration year 2036      
Tax credit carryforwards $ 57,700      
Tax credit carryforwards expiration year 2031      
Various states        
Operating Loss Carryforwards [Line Items]        
Net operating loss carryforwards $ 113,200      
Net operating loss carryforwards expiration year 2031      
Tax credit carryforwards $ 26,400