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, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Land and land improvements	$ 282,533	$ 603,017	$ 117,466
Buildings and improvements	2,379,657	3,470,801	780,048
Acquired lease intangibles	164,745	289,340	53,386
Construction in progress	108,141
Right of use assets, net	4,021	77,455
Total net real estate assets	2,939,097	4,440,613	950,900
Receivables and other assets	14,907	10,041	1,014
Total assets acquired	2,954,004	4,450,654	951,914
Secured debt	(319,362)
Lease liabilities	(3,852)	(138,126)
Accrued expenses and other liabilities	(115,804)	(200,423)	(2,612)
Total liabilities acquired	(439,018)	(338,549)	(2,612)
Noncontrolling interests	(116,211)	(27,931)	(45,546)
Non-cash acquisition related activity	(92,755)
Cash disbursed for acquisitions	2,306,020	4,084,174	903,756
Construction in progress additions	664,031	441,926	220,034
Less: Capitalized interest	(30,491)	(19,352)	(17,472)
Accruals	(1,803)	(4,611)	(1,226)
Cash disbursed for construction in progress	631,737	417,963	201,336
Capital improvements to existing properties	476,016	282,588	244,989
Total cash invested in real property, net of cash acquired	3,413,773	4,784,725	1,350,081
Cash acquired from acquisition	$ 6,563	4,201	580
New issues (in shares)	1,227
Seniors Housing Operating
Business Acquisition [Line Items]
Land and land improvements	$ 206,618	449,335	55,000
Buildings and improvements	2,067,051	2,347,609	527,189
Acquired lease intangibles	129,429	264,589	28,668
Construction in progress	108,141
Right of use assets, net	169	77,455
Total net real estate assets	2,511,408	3,138,988	610,857
Receivables and other assets	14,406	6,096	746
Total assets acquired	2,525,814	3,145,084	611,603
Secured debt	(279,788)
Lease liabilities	0	(138,126)
Accrued expenses and other liabilities	(112,962)	(191,454)	(1,650)
Total liabilities acquired	(392,750)	(329,580)	(1,650)
Noncontrolling interests	(115,112)	(4,942)	(45,546)
Non-cash acquisition related activity	(64,975)
Cash disbursed for acquisitions	1,952,977	2,810,562	564,407
Construction in progress additions	489,001	322,050	134,945
Less: Capitalized interest	(24,432)	(13,834)	(10,389)
Accruals	(4,621)	35	(1,226)
Cash disbursed for construction in progress	459,948	308,251	123,330
Capital improvements to existing properties	352,099	197,829	107,379
Total cash invested in real property, net of cash acquired	2,765,024	3,316,642	795,116
Triple-net
Business Acquisition [Line Items]
Land and land improvements	7,536	88,839	16,876
Buildings and improvements	59,248	809,328	73,855
Acquired lease intangibles	0	0	0
Construction in progress	0
Right of use assets, net	0	0
Total net real estate assets	66,784	898,167	90,731
Receivables and other assets	0	411	0
Total assets acquired	66,784	898,578	90,731
Secured debt	(39,574)
Lease liabilities	0	0
Accrued expenses and other liabilities	(1,428)	(8,703)	0
Total liabilities acquired	(41,002)	(8,703)	0
Noncontrolling interests	(4)	(6,449)	0
Non-cash acquisition related activity	(27,780)
Cash disbursed for acquisitions	(2,002)	883,426	90,731
Construction in progress additions	83,368	77,412	45,256
Less: Capitalized interest	(4,210)	(3,078)	(3,209)
Accruals	0	0	0
Cash disbursed for construction in progress	79,158	74,334	42,047
Capital improvements to existing properties	48,052	37,345	76,625
Total cash invested in real property, net of cash acquired	125,208	995,105	209,403
Outpatient Medical
Business Acquisition [Line Items]
Land and land improvements	68,379	64,843	45,590
Buildings and improvements	253,358	313,864	179,004
Acquired lease intangibles	35,316	24,751	24,718
Construction in progress	0
Right of use assets, net	3,852	0
Total net real estate assets	360,905	403,458	249,312
Receivables and other assets	501	3,534	268
Total assets acquired	361,406	406,992	249,580
Secured debt	0
Lease liabilities	(3,852)	0
Accrued expenses and other liabilities	(1,414)	(266)	(962)
Total liabilities acquired	(5,266)	(266)	(962)
Noncontrolling interests	(1,095)	(16,540)	0
Non-cash acquisition related activity	0
Cash disbursed for acquisitions	355,045	390,186	248,618
Construction in progress additions	91,662	42,464	39,833
Less: Capitalized interest	(1,849)	(2,440)	(3,874)
Accruals	2,818	(4,646)	0
Cash disbursed for construction in progress	92,631	35,378	35,959
Capital improvements to existing properties	75,865	47,414	60,985
Total cash invested in real property, net of cash acquired	$ 523,541	$ 472,978	$ 345,562