Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Supplemental cash flow information:
Interest paid, net of capitalized interest	$ 167,062	$ 187,569
Income taxes paid (refunded)	4,258	261
Capitalized interest	17,022	20,570
Supplemental schedule of non-cash investing and financing activities:
Accrued construction costs	150,204	114,979
Vesting of restricted stock units and conversion of non-managing member units into common stock	907	4,729
Net noncash impact from the consolidation of previously unconsolidated joint ventures	0	323,138
Mortgages assumed with real estate acquisitions	0	215,335
Carrying value of mortgages assumed by buyer in real estate dispositions	143,676	0
Refundable entrance fees assumed with real estate acquisitions	0	307,954
Seller financing provided on disposition of real estate asset	559,745	12,480
Increase in ROU asset in exchange for new lease liability related to operating leases	15,329	24,984
Decrease in ROU asset with corresponding change in lease liability related to operating leases	$ 8,410	$ 0

Decrease in Right-of-Use Asset Obtained in Exchange for Operating Lease Liability

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Noncash or Part Noncash, Discontinued Operations, Secured Debt Assumed by Buyer

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Future cash outflow to pay for construction in progress expenditures that have occurred.

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