Schedule III - Real Estate and Accumulated Depreciation - Assets Held for Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	$ 2,222,445
Initial cost of land and land improvements	4,157,359
Initial cost of building and improvements	34,084,618
Cost Capitalized Subsequent to Acquisition	8,207,202
Carrying amount of land and land improvements	4,697,824
Carrying amount of building and improvements	41,640,347
Accumulated depreciation	9,274,814	$ 8,075,733	$ 6,910,114	$ 6,104,297
Assets held for sale
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	187,041
Initial cost of land and land improvements	41,733
Initial cost of building and improvements	407,447
Cost Capitalized Subsequent to Acquisition	34,711
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	372,883
Accumulated depreciation	0
Assets held for sale | Bellevue, WA
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	0
Initial cost of land and land improvements	0
Initial cost of building and improvements	0
Cost Capitalized Subsequent to Acquisition	25,480
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	25,480
Accumulated depreciation	0
Assets held for sale | Braintree, MA
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	0
Initial cost of land and land improvements	170
Initial cost of building and improvements	7,157
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	170
Accumulated depreciation	0
Assets held for sale | Burlington, ON
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	15,339
Initial cost of land and land improvements	1,309
Initial cost of building and improvements	19,311
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	16,092
Accumulated depreciation	0
Assets held for sale | Calgary, AB 1
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	13,845
Initial cost of land and land improvements	2,252
Initial cost of building and improvements	37,415
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	29,755
Accumulated depreciation	0
Assets held for sale | Calgary, AB 2
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	7,883
Initial cost of land and land improvements	3,122
Initial cost of building and improvements	38,971
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	32,373
Accumulated depreciation	0
Assets held for sale | Chula Vista, CA 1
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	0
Initial cost of land and land improvements	1,045
Initial cost of building and improvements	21,387
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	20,112
Accumulated depreciation	0
Assets held for sale | Chula Vista, CA 2
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	0
Initial cost of land and land improvements	826
Initial cost of building and improvements	6,106
Cost Capitalized Subsequent to Acquisition	407
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	7,339
Accumulated depreciation	0
Assets held for sale | Fort Worth, TX
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	0
Initial cost of land and land improvements	1,740
Initial cost of building and improvements	19,799
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	5,451
Accumulated depreciation	0
Assets held for sale | Highland, IL
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	0
Initial cost of land and land improvements	0
Initial cost of building and improvements	0
Cost Capitalized Subsequent to Acquisition	5,879
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	5,879
Accumulated depreciation	0
Assets held for sale | Las Vegas, NV
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	0
Initial cost of land and land improvements	0
Initial cost of building and improvements	0
Cost Capitalized Subsequent to Acquisition	2,945
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	2,945
Accumulated depreciation	0
Assets held for sale | Markham, ON
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	46,660
Initial cost of land and land improvements	3,727
Initial cost of building and improvements	48,939
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	37,403
Accumulated depreciation	0
Assets held for sale | Mississauga, ON
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	23,007
Initial cost of land and land improvements	3,649
Initial cost of building and improvements	35,137
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	30,488
Accumulated depreciation	0
Assets held for sale | Oakville, ON
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	4,789
Initial cost of land and land improvements	1,252
Initial cost of building and improvements	7,382
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	6,960
Accumulated depreciation	0
Assets held for sale | Ottawa, ON
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	16,133
Initial cost of land and land improvements	3,454
Initial cost of building and improvements	23,309
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	20,751
Accumulated depreciation	0
Assets held for sale | St. John's, NL
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	4,092
Initial cost of land and land improvements	706
Initial cost of building and improvements	11,765
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	10,267
Accumulated depreciation	0
Assets held for sale | Surrey, BC
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	12,819
Initial cost of land and land improvements	4,552
Initial cost of building and improvements	22,338
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	20,488
Accumulated depreciation	0
Assets held for sale | Toronto, ON 1
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	5,812
Initial cost of land and land improvements	2,513
Initial cost of building and improvements	19,695
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	18,013
Accumulated depreciation	0
Assets held for sale | Toronto, ON 2
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	4,964
Initial cost of land and land improvements	1,447
Initial cost of building and improvements	3,918
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	4,490
Accumulated depreciation	0
Assets held for sale | Toronto, ON 3
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	17,649
Initial cost of land and land improvements	2,927
Initial cost of building and improvements	20,713
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	22,921
Accumulated depreciation	0
Assets held for sale | Toronto, ON 4
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	5,163
Initial cost of land and land improvements	5,082
Initial cost of building and improvements	25,493
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	25,586
Accumulated depreciation	0
Assets held for sale | Winnipeg, MB
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Initial cost of encumbrances	8,886
Initial cost of land and land improvements	1,960
Initial cost of building and improvements	38,612
Cost Capitalized Subsequent to Acquisition	0
Carrying amount of land and land improvements	0
Carrying amount of building and improvements	29,920
Accumulated depreciation	$ 0