Annual report pursuant to Section 13 and 15(d)

Supplemental Quarterly Financial Information (Unaudited) Supplemental Quarterly Financial Information (Unaudited) (Additional Information) (Details)

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Supplemental Quarterly Financial Information (Unaudited) Supplemental Quarterly Financial Information (Unaudited) (Additional Information) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]                    
Gain (loss) on derivatives $ (30,700) $ 21,800 $ 14,000 $ (67,300) $ 103,900 $ (34,300) $ (16,600) $ (62,109) $ 48,544 $ (18,901)
Non-cash loss on early extinguishment of debt 4,900             4,881 0 0
Merger and integration expenses $ 68,400 5,900           74,363 0 0
Loss on redemption of preferred stock   $ 8,300           $ 8,304 $ 0 $ 0