Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Summary Of Tax Credit Carryforwards) (Details)

v3.21.2
Income Taxes (Summary Of Tax Credit Carryforwards) (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Tax Credit Carryforward [Line Items]  
Total net operating loss amount $ 120,309
Operating loss carryforward expiration year 2022  
Tax Credit Carryforward [Line Items]  
Net operating loss amount 99,596
Operating loss carryforward expiration year 2023  
Tax Credit Carryforward [Line Items]  
Net operating loss amount 5,853
Operating loss carryforward expiration year 2024  
Tax Credit Carryforward [Line Items]  
Net operating loss amount 3,566
Operating loss carryforward expiration year 2025 and beyond [Member]  
Tax Credit Carryforward [Line Items]  
Net operating loss amount $ 11,294