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Income Taxes (Details 6) - Tax Valuation Allowance - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Changes in valuation and qualifying accounts      
Balance at beginning of period $ 201,883 $ 206,874 $ 174,119
Charged (credited) to operations 1,776 (7,233) 32,544
Charged to other account (717) 2,242 211
Valuation allowance release (177,886) 0 0
Balance at end of period $ 25,056 $ 201,883 $ 206,874