Business Segment Information - Reconciliation of Operating Profit (Loss) from Segments (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
Segment Reporting [Abstract]
General and administrative expenses		$ (133,668)	$ (167,515)
Depreciation and amortization	[1]	(114,657)	(126,417)
Gain (Loss) on disposal of assets	[1]	(4,013)	2,598
Operating loss		$ (139,597)	$ (73,030)

[1] (a) See reconciling cash flow items from discontinued operations in Note 2: Discontinued Operations