Consolidated Statements of Comprehensive Income (loss) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
	Dec. 31, 2018	Nov. 19, 2018	Dec. 31, 2019	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (27,484)	$ (2,154,877)	$ (556,465)	$ (525,166)
Other comprehensive income (loss):
Unrealized loss on available-for-sale securities				(485)
Reclassification adjustment for other-than-temporary impairment on available-for-sale securities realized in net income				485
Unrecognized loss on derivative instruments				(565)
Reclassification adjustment for loss on derivative instruments realized in net income		643		5,265
Total other comprehensive income		643		4,700
Total comprehensive loss	$ (27,484)	$ (2,154,234)	$ (556,465)	$ (520,466)