Supplemental Disclosure of Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Supplemental Cash Flow Information [Abstract]
Interest paid	$ 81,094	$ 92,270
Income taxes paid, net of refunds	(107)	246
Prepaid expenses and other assets	(8,630)	(36,554)
Assets held for sale	(106,344)		$ (97,843)
Additions to property, plant and equipment and leasehold intangibles, net	48,928	108,510
Acquisition of assets, net of related payables	0	12,157
Loss (gain) on sale of assets	(603)	2,749
Proceeds from sale of assets, net	(31,675)	(45,584)
Additions to property, plant and equipment and leasehold intangibles, net [Member]
Supplemental Cash Flow Information [Abstract]
Property, plant and equipment and leasehold intangibles, net	43,830	79,017
Accounts payable	5,098	29,493
Additions to property, plant and equipment and leasehold intangibles, net	48,928	108,510
Acquisition of assets, net of related payables [Member]
Supplemental Cash Flow Information [Abstract]
Property, plant and equipment and leasehold intangibles, net	0	19,457
Other intangible assets, net	0	(7,300)
Acquisition of assets, net of related payables	0	12,157
Proceeds from sale of assets, net [Member]
Supplemental Cash Flow Information [Abstract]
Prepaid expenses and other assets	(356)	(121)
Assets held for sale	(5,621)	(42,714)
Investments in unconsolidated ventures	(26,301)	0
Loss (gain) on sale of assets	603	(2,749)
Proceeds from sale of assets, net	(31,675)	(45,584)
Formation of Blackstone Joint Venture [Member]
Supplemental Cash Flow Information [Abstract]
Prepaid expenses and other assets	(8,173)	0
Property, plant and equipment and leasehold intangibles, net	(768,897)	0
Investments in unconsolidated ventures	66,816	0
Capital and financing lease obligations	879,959	0
Deferred liabilities	7,504	0
Other liabilities	1,998	0
Formation of the Blackstone Venture	179,207	0
Assets designated as held for sale [Member]
Supplemental Cash Flow Information [Abstract]
Prepaid expenses and other assets	106	0
Assets held for sale	(14,122)	0
Property, plant and equipment and leasehold intangibles, net	14,016	0
Net	$ 0	$ 0