Real Property Acquisitions and Development - Summary of Real Property Investment Activity by Segment (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Land and land improvements	$ 458,536	$ 282,533	$ 603,017
Buildings and improvements	3,318,754	2,379,657	3,470,801
Acquired lease intangibles	258,612	164,745	289,340
Construction in progress	165,934	108,141
Right of use assets, net	25,139	4,021	77,455
Total net real estate assets	4,226,975	2,939,097	4,440,613
Receivables and other assets	23,631	14,907	10,041
Total assets acquired	4,250,606	2,954,004	4,450,654
Secured debt	(413,435)	(319,362)
Lease liabilities	(25,165)	(3,852)	(138,126)
Accrued expenses and other liabilities	(38,194)	(115,804)	(200,423)
Total liabilities acquired	(476,794)	(439,018)	(338,549)
Noncontrolling interests	(33,617)	(116,211)	(27,931)
Non-cash acquisition related activity	(181,929)	(92,755)
Cash disbursed for acquisitions	3,558,266	2,306,020	4,084,174
Construction in progress additions	1,094,215	664,031	441,926
Less: Capitalized interest	(50,699)	(30,491)	(19,352)
Accruals	(28,581)	(1,803)	(4,611)
Cash disbursed for construction in progress	1,014,935	631,737	417,963
Capital improvements to existing properties	517,682	476,016	282,588
Total cash invested in real property, net of cash acquired	5,090,883	3,413,773	4,784,725
Cash acquired from acquisition	4,708	$ 6,563	4,201
New issues (in shares)		1,227
Seniors Housing Operating
Business Acquisition [Line Items]
Land and land improvements	251,507	$ 206,618	449,335
Buildings and improvements	2,006,021	2,067,051	2,347,609
Acquired lease intangibles	208,239	129,429	264,589
Construction in progress	165,934	108,141
Right of use assets, net	24,212	169	77,455
Total net real estate assets	2,655,913	2,511,408	3,138,988
Receivables and other assets	21,999	14,406	6,096
Total assets acquired	2,677,912	2,525,814	3,145,084
Secured debt	(372,482)	(279,788)
Lease liabilities	(24,212)	0	(138,126)
Accrued expenses and other liabilities	(26,666)	(112,962)	(191,454)
Total liabilities acquired	(423,360)	(392,750)	(329,580)
Noncontrolling interests	(32,692)	(115,112)	(4,942)
Non-cash acquisition related activity	(181,929)	(64,975)
Cash disbursed for acquisitions	2,039,931	1,952,977	2,810,562
Construction in progress additions	646,466	489,001	322,050
Less: Capitalized interest	(39,799)	(24,432)	(13,834)
Accruals	(4,735)	(4,621)	35
Cash disbursed for construction in progress	601,932	459,948	308,251
Capital improvements to existing properties	399,130	352,099	197,829
Total cash invested in real property, net of cash acquired	3,040,993	2,765,024	3,316,642
Triple-net
Business Acquisition [Line Items]
Land and land improvements	127,523	7,536	88,839
Buildings and improvements	969,481	59,248	809,328
Acquired lease intangibles	0	0	0
Construction in progress	0	0
Right of use assets, net	0	0	0
Total net real estate assets	1,097,004	66,784	898,167
Receivables and other assets	0	0	411
Total assets acquired	1,097,004	66,784	898,578
Secured debt	0	(39,574)
Lease liabilities	0	0	0
Accrued expenses and other liabilities	0	(1,428)	(8,703)
Total liabilities acquired	0	(41,002)	(8,703)
Noncontrolling interests	0	(4)	(6,449)
Non-cash acquisition related activity	0	(27,780)
Cash disbursed for acquisitions	1,097,004	(2,002)	883,426
Construction in progress additions	25,646	83,368	77,412
Less: Capitalized interest	(2,416)	(4,210)	(3,078)
Accruals	(1,358)	0	0
Cash disbursed for construction in progress	21,872	79,158	74,334
Capital improvements to existing properties	33,592	48,052	37,345
Total cash invested in real property, net of cash acquired	1,152,468	125,208	995,105
Outpatient Medical
Business Acquisition [Line Items]
Land and land improvements	79,506	68,379	64,843
Buildings and improvements	343,252	253,358	313,864
Acquired lease intangibles	50,373	35,316	24,751
Construction in progress	0	0
Right of use assets, net	927	3,852	0
Total net real estate assets	474,058	360,905	403,458
Receivables and other assets	1,632	501	3,534
Total assets acquired	475,690	361,406	406,992
Secured debt	(40,953)	0
Lease liabilities	(953)	(3,852)	0
Accrued expenses and other liabilities	(11,528)	(1,414)	(266)
Total liabilities acquired	(53,434)	(5,266)	(266)
Noncontrolling interests	(925)	(1,095)	(16,540)
Non-cash acquisition related activity	0	0
Cash disbursed for acquisitions	421,331	355,045	390,186
Construction in progress additions	422,103	91,662	42,464
Less: Capitalized interest	(8,484)	(1,849)	(2,440)
Accruals	(22,488)	2,818	(4,646)
Cash disbursed for construction in progress	391,131	92,631	35,378
Capital improvements to existing properties	84,960	75,865	47,414
Total cash invested in real property, net of cash acquired	$ 897,422	$ 523,541	$ 472,978