Supplemental Cash Flow Information - Summary of Supplemental (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Supplemental cash flow information:
Interest paid, net of capitalized interest	$ 173,044	$ 209,843	$ 201,784
Income taxes paid (refunded)	4,521	(786)	1,426
Capitalized interest	24,084	27,041	30,459
Cash paid for amounts included in the measurement of lease liability for operating leases	10,620	9,940	8,158
Supplemental schedule of non-cash investing and financing activities:
Increase in ROU asset in exchange for new lease liability related to operating leases	28,866	32,208	5,733
Decrease in ROU asset with corresponding change in lease liability related to operating leases	8,410	0	0
Seller financing provided on disposition of real estate asset	559,745	73,498	44,812
Accrued construction costs	179,995	95,293	126,006
Net noncash impact from the consolidation of previously unconsolidated joint ventures	0	369,223	17,850
Refundable entrance fees assumed with real estate acquisitions	0	307,954	0
Retained investment in connection with SWF SH JV	0	0	427,328
Conversion of DFLs to real estate	0	0	350,540
Carrying value of mortgages assumed by buyer in real estate dispositions	143,676	0	0
Mortgages assumed with real estate acquisitions	0	251,280	172,565
Vesting of restricted stock units and conversion of non-managing member units into common stock	$ 1,125	$ 4,746	$ 5,614