Segment Information - Assets (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) property segment	Dec. 31, 2020 USD ($)
Reconciliation of assets from segment to consolidated
Number of activity segments | segment	60
Net real estate	$ 31,988,872	$ 17,485,156
Goodwill	3,676,705	14,180
Other corporate assets	2,195,800	1,530,294
Total assets	$ 43,137,502	20,740,285
Number of properties owned | property	11,136
Automotive service
Reconciliation of assets from segment to consolidated
Net real estate	$ 852,151	328,340
Intangible assets	125,543	55,018
Beverages
Reconciliation of assets from segment to consolidated
Net real estate	362,570	347,366
Intangible assets	17,452	9,401
Child care
Reconciliation of assets from segment to consolidated
Net real estate	347,680	216,718
Intangible assets	33,449	19,848
Convenience stores - U.S.
Reconciliation of assets from segment to consolidated
Net real estate	2,844,800	2,101,005
Intangible assets	275,548	121,151
Dollar stores
Reconciliation of assets from segment to consolidated
Net real estate	2,303,906	1,420,210
Intangible assets	366,319	77,176
Drug stores
Reconciliation of assets from segment to consolidated
Net real estate	2,182,432	1,555,106
Intangible assets	355,779	167,975
Financial services
Reconciliation of assets from segment to consolidated
Net real estate	576,065	374,508
Intangible assets	92,986	14,611
General merchandise - U.S.
Reconciliation of assets from segment to consolidated
Net real estate	1,289,735	730,806
Intangible assets	254,343	108,646
Grocery stores - U.S.
Reconciliation of assets from segment to consolidated
Net real estate	1,517,237	907,634
Intangible assets	378,181	181,764
Grocery stores - U.K.
Reconciliation of assets from segment to consolidated
Net real estate	1,963,057	1,131,760
Intangible assets	426,714	282,211
Health and fitness
Reconciliation of assets from segment to consolidated
Net real estate	1,325,932	1,050,791
Intangible assets	125,586	67,537
Health care - U.S.
Reconciliation of assets from segment to consolidated
Net real estate	670,864	289,244
Intangible assets	103,143	21,032
Home furnishings - U.S.
Reconciliation of assets from segment to consolidated
Net real estate	583,564	109,631
Intangible assets	210,654	9,336
Home improvement - U.S.
Reconciliation of assets from segment to consolidated
Net real estate	946,870	608,222
Intangible assets	207,637	97,228
Home improvement - U.K.
Reconciliation of assets from segment to consolidated
Net real estate	780,308	187,289
Intangible assets	158,667	57,369
Restaurants - casual dining
Reconciliation of assets from segment to consolidated
Net real estate	2,016,017	515,226
Intangible assets	416,653	20,553
Restaurants - quick service- U.S.
Reconciliation of assets from segment to consolidated
Net real estate	2,689,806	1,062,918
Intangible assets	270,092	47,517
Theaters - U.S.
Reconciliation of assets from segment to consolidated
Net real estate	750,877	767,117
Intangible assets	33,527	28,292
Transportation services
Reconciliation of assets from segment to consolidated
Net real estate	1,039,220	729,640
Intangible assets	125,971	53,902
Wholesale club
Reconciliation of assets from segment to consolidated
Net real estate	865,658	407,584
Intangible assets	155,032	36,165
Other non-reportable segments
Reconciliation of assets from segment to consolidated
Net real estate	6,080,123	2,644,041
Intangible assets	$ 1,142,849	$ 233,923
Spain
Reconciliation of assets from segment to consolidated
Number of properties owned | property	43