Supplemental Disclosure of Cash Flow Information - Supplemental Disclosure of Cash Flow 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	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Supplemental Cash Flow Information [Abstract]
Interest paid									$ 244,469	$ 260,706	$ 294,758
Income taxes paid, net of refunds									1,534	2,058	1,038
Capital expenditures, net of related payables									304,092	225,473	213,887
Prepaid expenses and other assets, net									55,873	26,762	21,970
Loss (gain) on sale of assets, net	$ (4,522)	$ (579)	$ (2,846)	$ 702	$ (216,660)	$ (9,833)	$ (23,322)	$ (43,431)	(7,245)	(293,246)	(19,273)
Loss (gain) on facility lease termination and modification, net	1,382	$ 0	$ 1,797	$ 209	13,197	$ 2,337	$ 146,467	$ 0	(3,388)	(162,001)	(14,276)
Net cash paid									0	12,548	552
Additions to property, plant and equipment and leasehold intangibles, net
Supplemental Cash Flow Information [Abstract]
Capital expenditures, net of related payables									304,092	225,473	213,887
Trade accounts payable									8,891	4,663	(7,589)
Acquisition of assets, net of related payables and cash received
Supplemental Cash Flow Information [Abstract]
Property, plant and equipment and leasehold intangibles, net									44	237,563	0
Other intangible assets, net									453	(4,345)	5,196
Financing lease obligations									0	36,120	0
Other liabilities									0	2,433	0
Net cash paid									497	271,771	5,196
Proceeds from sale of assets, net
Supplemental Cash Flow Information [Abstract]
Financing lease obligations									0	93,514	157,963
Prepaid expenses and other assets, net									(4,422)	(4,950)	(17,072)
Assets held for sale									(79,054)	(197,111)	(20,952)
Property, plant and equipment and leasehold intangibles, net									(379)	(93,098)	(155,723)
Investments in unconsolidated ventures									(156)	(58,179)	(52,548)
Long-term debt									0	0	8,547
Refundable fees and deferred revenue									0	8,632	30,771
Other liabilities									(1,479)	1,139	(1,058)
Loss (gain) on sale of assets, net									(7,245)	(249,754)	(19,273)
Loss (gain) on facility lease termination and modification, net									0	0	(1,162)
Net cash received									(92,735)	(499,807)	(70,507)
Lease termination and modification, net
Supplemental Cash Flow Information [Abstract]
Prepaid expenses and other assets, net									0	(2,804)	0
Property, plant and equipment and leasehold intangibles, net									0	(87,464)	0
Loss (gain) on sale of assets, net									0	(5,761)	0
Loss (gain) on facility lease termination and modification, net									0	(34,283)	0
Financing lease obligations									0	58,099	0
Deferred liabilities									0	70,835	0
Net cash paid									0	67,188	0
Formation of the Blackstone Venture
Supplemental Cash Flow Information [Abstract]
Other liabilities									0	0	1,998
Prepaid expenses and other assets, net									0	0	(8,173)
Deferred liabilities									0	0	7,504
Property, plant and equipment and leasehold intangibles, net									0	0	(768,897)
Investments in unconsolidated ventures	$ 0				$ 0				0	0	66,816
Financing lease obligations									0	0	879,959
Net cash paid									0	0	179,207
Non-Development | Additions to property, plant and equipment and leasehold intangibles, net
Supplemental Cash Flow Information [Abstract]
Capital expenditures, net of related payables									235,797	182,249	186,467
Development | Additions to property, plant and equipment and leasehold intangibles, net
Supplemental Cash Flow Information [Abstract]
Capital expenditures, net of related payables									24,595	24,687	8,823
Non-development - Reimbursable | Additions to property, plant and equipment and leasehold intangibles, net
Supplemental Cash Flow Information [Abstract]
Capital expenditures, net of related payables									34,809	12,165	18,054
Development - Reimbursable | Additions to property, plant and equipment and leasehold intangibles, net
Supplemental Cash Flow Information [Abstract]
Capital expenditures, net of related payables									$ 0	$ 1,709	$ 8,132