Quarterly report pursuant to Section 13 or 15(d)

Income Tax Benefit (Details)

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Income Tax Benefit (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Mar. 31, 2019
Income Tax Disclosure [Abstract]          
Income tax benefit (expense) $ (9,123) $ 6,138 $ (15,296) $ (27,660)  
Tax benefit connection with the reversal of substantially all of valuation allowance on net operating loss carryforwards         $ 35,700