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Federal Income Tax Receivable (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Income Tax Disclosure [Abstract]      
Federal income tax receivable $ 14,992   $ 0
Deferred tax liability increase due to tax law change 10,103 $ 0  
Income tax benefit from CARES Act $ 4,900