Supplemental Disclosure of Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Supplemental Disclosure of Cash Flow Information:
Interest paid			$ 142,242	$ 142,268
Income taxes paid, net of refunds			581	6,447
Net cash paid			150,572	125,817
Accounts receivable, net			411	584
Investment in unconsolidated ventures			192	5,359
Prepaid expenses and other assets, net			(11,807)	(7,487)
Refundable fees and deferred revenue			7,265	(10,492)
Loss (gain) on sale of assets, net	$ 56	$ (288,375)	(611)	(289,408)
Capital expenditures, net of related payables
Supplemental Disclosure of Cash Flow Information:
Net cash paid			150,572	125,817
Trade accounts payable			(1,543)	(2,987)
Proceeds from HCS Sale, net
Supplemental Disclosure of Cash Flow Information:
Trade accounts payable			0	(1,387)
Accounts receivable, net			0	(57,582)
Property, plant and equipment and leasehold intangibles, net			0	(1,806)
Operating lease right-of-use assets			0	(8,145)
Investment in unconsolidated ventures			0	100,000
Goodwill			0	(126,810)
Prepaid expenses and other assets, net			0	(26,409)
Accrued expenses			0	25,226
Refundable fees and deferred revenue			0	57,314
Operating lease obligations			0	8,145
Other liabilities			0	11,135
Loss (gain) on sale of assets, net			0	(288,233)
Net cash received			0	(305,778)
Proceeds from sale of other assets, net
Supplemental Disclosure of Cash Flow Information:
Property, plant and equipment and leasehold intangibles, net			(100)	(568)
Prepaid expenses and other assets, net			(1,301)	0
Loss (gain) on sale of assets, net			(611)	(1,175)
Assets held for sale			(3,668)	(8,040)
Other liabilities			(164)	(22)
Net cash received			(5,844)	(9,805)
Assets designated as held for sale
Supplemental Disclosure of Cash Flow Information:
Property, plant and equipment and leasehold intangibles, net			0	3,612
Assets held for sale			0	(3,612)
Net			0	0
Other non-cash lease transactions, net
Supplemental Disclosure of Cash Flow Information:
Property, plant and equipment and leasehold intangibles, net			(11,067)	(3,521)
Operating lease right-of-use assets			11,219	17,013
Operating lease obligations			(15,979)	(17,013)
Financing lease obligations			(6,307)	(3,521)
Net			0	0
Non-development | Capital expenditures, net of related payables
Supplemental Disclosure of Cash Flow Information:
Net cash paid			128,831	91,438
Development | Capital expenditures, net of related payables
Supplemental Disclosure of Cash Flow Information:
Net cash paid			4,357	2,726
Non-development - reimbursable | Capital expenditures, net of related payables
Supplemental Disclosure of Cash Flow Information:
Net cash paid			$ 18,927	$ 34,640