Real Estate and Accumulated Depreciation (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) Property	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2,346
Land	$ 12,262,975
Building and Improvements	24,653,657
Costs capitalized subsequent to acquisition	8,473,598
Carrying amount of land	12,812,001
Carrying amount of buildings and improvements	32,578,229
Carrying amount of land and buildings and improvements, Total	45,390,230	$ 33,157,100	$ 32,774,956	$ 24,178,816
Accumulated Depreciation	$ (6,370,341)	$ (5,294,212)	$ (4,550,958)	$ (3,971,501)
Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	85
Land	$ 794,325
Building and Improvements	13,379
Costs capitalized subsequent to acquisition	1,074,907
Carrying amount of land	794,325
Carrying amount of buildings and improvements	1,088,286
Carrying amount of land and buildings and improvements, Total	$ 1,882,611
United States: Markets [Member] | U.S. [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	46
Land	$ 305,092
Building and Improvements	13,379
Costs capitalized subsequent to acquisition	354,091
Carrying amount of land	305,092
Carrying amount of buildings and improvements	367,470
Carrying amount of land and buildings and improvements, Total	$ 672,562
United States: Markets [Member] | U.S. [Member] | Atlanta [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	1
Land	$ 3,407
Building and Improvements	0
Costs capitalized subsequent to acquisition	6,699
Carrying amount of land	3,407
Carrying amount of buildings and improvements	6,699
Carrying amount of land and buildings and improvements, Total	$ 10,106
United States: Markets [Member] | U.S. [Member] | Central Valley [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 2,459
Building and Improvements	0
Costs capitalized subsequent to acquisition	20,969
Carrying amount of land	2,459
Carrying amount of buildings and improvements	20,969
Carrying amount of land and buildings and improvements, Total	$ 23,428
Date of Construction/ Acquisition	2020
United States: Markets [Member] | U.S. [Member] | Chicago [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	1
Land	$ 7,004
Building and Improvements	0
Costs capitalized subsequent to acquisition	21,373
Carrying amount of land	7,004
Carrying amount of buildings and improvements	21,373
Carrying amount of land and buildings and improvements, Total	$ 28,377
Date of Construction/ Acquisition	2020
United States: Markets [Member] | U.S. [Member] | Denver [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	1
Land	$ 2,661
Building and Improvements	0
Costs capitalized subsequent to acquisition	16,186
Carrying amount of land	2,661
Carrying amount of buildings and improvements	16,186
Carrying amount of land and buildings and improvements, Total	$ 18,847
Date of Construction/ Acquisition	2020
United States: Markets [Member] | U.S. [Member] | Houston [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	1
Land	$ 2,212
Building and Improvements	0
Costs capitalized subsequent to acquisition	9,430
Carrying amount of land	2,212
Carrying amount of buildings and improvements	9,430
Carrying amount of land and buildings and improvements, Total	$ 11,642
Date of Construction/ Acquisition	2020
United States: Markets [Member] | U.S. [Member] | Indianapolis [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	1
Land	$ 2,153
Building and Improvements	0
Costs capitalized subsequent to acquisition	623
Carrying amount of land	2,153
Carrying amount of buildings and improvements	623
Carrying amount of land and buildings and improvements, Total	$ 2,776
United States: Markets [Member] | U.S. [Member] | Las Vegas [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 38,395
Building and Improvements	0
Costs capitalized subsequent to acquisition	7,578
Carrying amount of land	38,395
Carrying amount of buildings and improvements	7,578
Carrying amount of land and buildings and improvements, Total	$ 45,973
United States: Markets [Member] | U.S. [Member] | Lehigh Valley [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 62,916
Building and Improvements	0
Costs capitalized subsequent to acquisition	39,375
Carrying amount of land	62,916
Carrying amount of buildings and improvements	39,375
Carrying amount of land and buildings and improvements, Total	102,291
Accumulated Depreciation	$ 0
United States: Markets [Member] | U.S. [Member] | Louisville [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 7,910
Building and Improvements	0
Costs capitalized subsequent to acquisition	10,831
Carrying amount of land	7,910
Carrying amount of buildings and improvements	10,831
Carrying amount of land and buildings and improvements, Total	$ 18,741
Date of Construction/ Acquisition	2020
United States: Markets [Member] | U.S. [Member] | Nashville [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 5,281
Building and Improvements	0
Costs capitalized subsequent to acquisition	492
Carrying amount of land	5,281
Carrying amount of buildings and improvements	492
Carrying amount of land and buildings and improvements, Total	$ 5,773
United States: Markets [Member] | U.S. [Member] | New Jersey/New York City [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	1
Land	$ 3,350
Building and Improvements	0
Costs capitalized subsequent to acquisition	6,377
Carrying amount of land	3,350
Carrying amount of buildings and improvements	6,377
Carrying amount of land and buildings and improvements, Total	$ 9,727
United States: Markets [Member] | U.S. [Member] | Orlando [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 11,693
Building and Improvements	0
Costs capitalized subsequent to acquisition	12,668
Carrying amount of land	11,693
Carrying amount of buildings and improvements	12,668
Carrying amount of land and buildings and improvements, Total	$ 24,361
United States: Markets [Member] | U.S. [Member] | Phoenix [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	5
Land	$ 19,482
Building and Improvements	10,742
Costs capitalized subsequent to acquisition	19,434
Carrying amount of land	19,482
Carrying amount of buildings and improvements	30,176
Carrying amount of land and buildings and improvements, Total	$ 49,658
Date of Construction/ Acquisition	2020
United States: Markets [Member] | U.S. [Member] | Portland [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 11,298
Building and Improvements	0
Costs capitalized subsequent to acquisition	28,741
Carrying amount of land	11,298
Carrying amount of buildings and improvements	28,741
Carrying amount of land and buildings and improvements, Total	$ 40,039
United States: Markets [Member] | U.S. [Member] | Reno [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	1
Land	$ 1,471
Building and Improvements	0
Costs capitalized subsequent to acquisition	13,201
Carrying amount of land	1,471
Carrying amount of buildings and improvements	13,201
Carrying amount of land and buildings and improvements, Total	$ 14,672
United States: Markets [Member] | U.S. [Member] | San Francisco Bay Area [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	4
Land	$ 15,841
Building and Improvements	0
Costs capitalized subsequent to acquisition	40,765
Carrying amount of land	15,841
Carrying amount of buildings and improvements	40,765
Carrying amount of land and buildings and improvements, Total	$ 56,606
Date of Construction/ Acquisition	2020
United States: Markets [Member] | U.S. [Member] | Seattle [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 27,130
Building and Improvements	0
Costs capitalized subsequent to acquisition	13,349
Carrying amount of land	27,130
Carrying amount of buildings and improvements	13,349
Carrying amount of land and buildings and improvements, Total	$ 40,479
Date of Construction/ Acquisition	2020
United States: Markets [Member] | U.S. [Member] | South Florida [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	1
Land	$ 8,886
Building and Improvements	2,637
Costs capitalized subsequent to acquisition	8,100
Carrying amount of land	8,886
Carrying amount of buildings and improvements	10,737
Carrying amount of land and buildings and improvements, Total	$ 19,623
Date of Construction/ Acquisition	2020
United States: Markets [Member] | U.S. [Member] | Southern California [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	3
Land	$ 21,242
Building and Improvements	0
Costs capitalized subsequent to acquisition	13,777
Carrying amount of land	21,242
Carrying amount of buildings and improvements	13,777
Carrying amount of land and buildings and improvements, Total	$ 35,019
United States: Markets [Member] | U.S. [Member] | Baltimore Washington [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	4
Land	$ 40,230
Building and Improvements	0
Costs capitalized subsequent to acquisition	4,580
Carrying amount of land	40,230
Carrying amount of buildings and improvements	4,580
Carrying amount of land and buildings and improvements, Total	44,810
Accumulated Depreciation	$ 0
United States: Markets [Member] | U.S. [Member] | Cincinnati | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	1
Land	$ 1,272
Building and Improvements	0
Costs capitalized subsequent to acquisition	0
Carrying amount of land	1,272
Carrying amount of buildings and improvements	0
Carrying amount of land and buildings and improvements, Total	$ 1,272
United States: Markets [Member] | U.S. [Member] | Dallas Ft. Worth [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	5
Land	$ 8,799
Building and Improvements	0
Costs capitalized subsequent to acquisition	59,543
Carrying amount of land	8,799
Carrying amount of buildings and improvements	59,543
Carrying amount of land and buildings and improvements, Total	68,342
Accumulated Depreciation	$ 0
Date of Construction/ Acquisition	2020
Other Americas Markets [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	4
Land	$ 36,003
Building and Improvements	0
Costs capitalized subsequent to acquisition	37,349
Carrying amount of land	36,003
Carrying amount of buildings and improvements	37,349
Carrying amount of land and buildings and improvements, Total	$ 73,352
Other Americas Markets [Member] | Canada [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 22,775
Building and Improvements	0
Costs capitalized subsequent to acquisition	30,653
Carrying amount of land	22,775
Carrying amount of buildings and improvements	30,653
Carrying amount of land and buildings and improvements, Total	$ 53,428
Other Americas Markets [Member] | Mexico [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 13,228
Building and Improvements	0
Costs capitalized subsequent to acquisition	6,696
Carrying amount of land	13,228
Carrying amount of buildings and improvements	6,696
Carrying amount of land and buildings and improvements, Total	$ 19,924
Europe Markets | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	26
Land	$ 242,305
Building and Improvements	0
Costs capitalized subsequent to acquisition	316,774
Carrying amount of land	242,305
Carrying amount of buildings and improvements	316,774
Carrying amount of land and buildings and improvements, Total	$ 559,079
Europe Markets | France [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 14,754
Building and Improvements	0
Costs capitalized subsequent to acquisition	30,611
Carrying amount of land	14,754
Carrying amount of buildings and improvements	30,611
Carrying amount of land and buildings and improvements, Total	$ 45,365
Date of Construction/ Acquisition	2020
Europe Markets | Germany [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	3
Land	$ 15,184
Building and Improvements	0
Costs capitalized subsequent to acquisition	47,035
Carrying amount of land	15,184
Carrying amount of buildings and improvements	47,035
Carrying amount of land and buildings and improvements, Total	$ 62,219
Date of Construction/ Acquisition	2020
Europe Markets | United Kingdom [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	6
Land	$ 139,243
Building and Improvements	0
Costs capitalized subsequent to acquisition	92,829
Carrying amount of land	139,243
Carrying amount of buildings and improvements	92,829
Carrying amount of land and buildings and improvements, Total	$ 232,072
Europe Markets | Czech Republic | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 3,709
Building and Improvements	0
Costs capitalized subsequent to acquisition	13,242
Carrying amount of land	3,709
Carrying amount of buildings and improvements	13,242
Carrying amount of land and buildings and improvements, Total	$ 16,951
Date of Construction/ Acquisition	2020
Europe Markets | Italy [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	6
Land	$ 38,445
Building and Improvements	0
Costs capitalized subsequent to acquisition	43,873
Carrying amount of land	38,445
Carrying amount of buildings and improvements	43,873
Carrying amount of land and buildings and improvements, Total	$ 82,318
Europe Markets | Netherlands [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	3
Land	$ 15,343
Building and Improvements	0
Costs capitalized subsequent to acquisition	39,003
Carrying amount of land	15,343
Carrying amount of buildings and improvements	39,003
Carrying amount of land and buildings and improvements, Total	$ 54,346
Date of Construction/ Acquisition	2020
Europe Markets | Poland [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 10,481
Building and Improvements	0
Costs capitalized subsequent to acquisition	37,720
Carrying amount of land	10,481
Carrying amount of buildings and improvements	37,720
Carrying amount of land and buildings and improvements, Total	$ 48,201
Europe Markets | Slovakia [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 5,146
Building and Improvements	0
Costs capitalized subsequent to acquisition	12,461
Carrying amount of land	5,146
Carrying amount of buildings and improvements	12,461
Carrying amount of land and buildings and improvements, Total	$ 17,607
Date of Construction/ Acquisition	2020
Asia Markets [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	9
Land	$ 210,925
Building and Improvements	0
Costs capitalized subsequent to acquisition	366,693
Carrying amount of land	210,925
Carrying amount of buildings and improvements	366,693
Carrying amount of land and buildings and improvements, Total	$ 577,618
Asia Markets [Member] | Japan [Member] | Development Portfolio
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	9
Land	$ 210,925
Building and Improvements	0
Costs capitalized subsequent to acquisition	366,693
Carrying amount of land	210,925
Carrying amount of buildings and improvements	366,693
Carrying amount of land and buildings and improvements, Total	$ 577,618
Date of Construction/ Acquisition	2020
Operating Properties [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2,261
Land	$ 11,468,650
Building and Improvements	24,640,278
Costs capitalized subsequent to acquisition	7,398,691
Carrying amount of land	12,017,676
Carrying amount of buildings and improvements	31,489,943
Carrying amount of land and buildings and improvements, Total	43,507,619
Accumulated Depreciation	$ (6,370,341)
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2,206
Land	$ 11,075,486
Building and Improvements	24,029,391
Costs capitalized subsequent to acquisition	6,891,510
Carrying amount of land	11,597,193
Carrying amount of buildings and improvements	30,399,194
Carrying amount of land and buildings and improvements, Total	41,996,387
Accumulated Depreciation	$ (6,131,199)
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Atlanta [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	116
Land	$ 261,566
Building and Improvements	1,016,540
Costs capitalized subsequent to acquisition	317,849
Carrying amount of land	281,825
Carrying amount of buildings and improvements	1,314,130
Carrying amount of land and buildings and improvements, Total	1,595,955
Accumulated Depreciation	$ (252,437)
Date of Construction/ Acquisition	1994-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Austin [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	10
Land	$ 12,783
Building and Improvements	52,335
Costs capitalized subsequent to acquisition	9,009
Carrying amount of land	12,837
Carrying amount of buildings and improvements	61,290
Carrying amount of land and buildings and improvements, Total	74,127
Accumulated Depreciation	$ (25,055)
Date of Construction/ Acquisition	1994-2015
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Central PA [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	33
Land	$ 240,657
Building and Improvements	955,273
Costs capitalized subsequent to acquisition	113,300
Carrying amount of land	253,737
Carrying amount of buildings and improvements	1,055,493
Carrying amount of land and buildings and improvements, Total	1,309,230
Accumulated Depreciation	$ (175,222)
Date of Construction/ Acquisition	2002-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Central Valley [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	33
Land	$ 160,963
Building and Improvements	386,853
Costs capitalized subsequent to acquisition	758,043
Carrying amount of land	178,444
Carrying amount of buildings and improvements	1,127,415
Carrying amount of land and buildings and improvements, Total	1,305,859
Accumulated Depreciation	$ (184,917)
Date of Construction/ Acquisition	1999-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Charlotte [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	37
Land	$ 93,695
Building and Improvements	273,544
Costs capitalized subsequent to acquisition	81,523
Carrying amount of land	104,768
Carrying amount of buildings and improvements	343,994
Carrying amount of land and buildings and improvements, Total	448,762
Accumulated Depreciation	$ (51,437)
Date of Construction/ Acquisition	1994-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Chicago [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	193
Land	$ 718,152
Building and Improvements	2,073,268
Costs capitalized subsequent to acquisition	454,347
Carrying amount of land	747,058
Carrying amount of buildings and improvements	2,498,709
Carrying amount of land and buildings and improvements, Total	3,245,767
Accumulated Depreciation	$ (578,271)
Date of Construction/ Acquisition	1995-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Cincinnati [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	35
Land	$ 62,241
Building and Improvements	280,877
Costs capitalized subsequent to acquisition	123,422
Carrying amount of land	69,743
Carrying amount of buildings and improvements	396,797
Carrying amount of land and buildings and improvements, Total	466,540
Accumulated Depreciation	$ (60,109)
Date of Construction/ Acquisition	1996-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Columbus [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	26
Land	$ 31,733
Building and Improvements	161,881
Costs capitalized subsequent to acquisition	60,539
Carrying amount of land	34,683
Carrying amount of buildings and improvements	219,470
Carrying amount of land and buildings and improvements, Total	254,153
Accumulated Depreciation	$ (84,430)
Date of Construction/ Acquisition	1996-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Dallas/Fort Worth [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	164
Land	$ 353,302
Building and Improvements	1,472,061
Costs capitalized subsequent to acquisition	379,898
Carrying amount of land	377,457
Carrying amount of buildings and improvements	1,827,804
Carrying amount of land and buildings and improvements, Total	2,205,261
Accumulated Depreciation	$ (389,041)
Date of Construction/ Acquisition	1994-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Denver [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	36
Land	$ 103,427
Building and Improvements	295,412
Costs capitalized subsequent to acquisition	128,095
Carrying amount of land	101,834
Carrying amount of buildings and improvements	425,100
Carrying amount of land and buildings and improvements, Total	526,934
Accumulated Depreciation	$ (121,543)
Date of Construction/ Acquisition	1993-2019
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Houston [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	179
Land	$ 366,568
Building and Improvements	1,873,268
Costs capitalized subsequent to acquisition	237,476
Carrying amount of land	409,365
Carrying amount of buildings and improvements	2,067,947
Carrying amount of land and buildings and improvements, Total	2,477,312
Accumulated Depreciation	$ (227,974)
Date of Construction/ Acquisition	1993-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Indianapolis [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	22
Land	$ 22,798
Building and Improvements	148,741
Costs capitalized subsequent to acquisition	59,603
Carrying amount of land	26,164
Carrying amount of buildings and improvements	204,978
Carrying amount of land and buildings and improvements, Total	231,142
Accumulated Depreciation	$ (56,037)
Date of Construction/ Acquisition	1995-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Jacksonville [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	1
Land	$ 0
Building and Improvements	2,892
Costs capitalized subsequent to acquisition	273
Carrying amount of land	0
Carrying amount of buildings and improvements	3,165
Carrying amount of land and buildings and improvements, Total	3,165
Accumulated Depreciation	$ (2,494)
Date of Construction/ Acquisition	2011
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Las Vegas [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	52
Land	$ 125,176
Building and Improvements	261,616
Costs capitalized subsequent to acquisition	217,118
Carrying amount of land	120,839
Carrying amount of buildings and improvements	483,071
Carrying amount of land and buildings and improvements, Total	603,910
Accumulated Depreciation	$ (93,472)
Date of Construction/ Acquisition	1996-2019
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Lehigh Valley [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	55
Land	$ 852,286
Building and Improvements	1,902,902
Costs capitalized subsequent to acquisition	253,954
Carrying amount of land	924,487
Carrying amount of buildings and improvements	2,084,655
Carrying amount of land and buildings and improvements, Total	3,009,142
Accumulated Depreciation	$ (121,431)
Date of Construction/ Acquisition	2004-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Louisville [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	12
Land	$ 48,237
Building and Improvements	258,025
Costs capitalized subsequent to acquisition	46,183
Carrying amount of land	50,633
Carrying amount of buildings and improvements	301,812
Carrying amount of land and buildings and improvements, Total	352,445
Accumulated Depreciation	$ (73,870)
Date of Construction/ Acquisition	2005-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Nashville [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	21
Land	$ 61,126
Building and Improvements	236,777
Costs capitalized subsequent to acquisition	62,631
Carrying amount of land	62,717
Carrying amount of buildings and improvements	297,817
Carrying amount of land and buildings and improvements, Total	360,534
Accumulated Depreciation	$ (51,601)
Date of Construction/ Acquisition	1995-2019
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | New Jersey/New York City [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	128
Land	$ 1,469,070
Building and Improvements	1,865,445
Costs capitalized subsequent to acquisition	565,329
Carrying amount of land	1,478,901
Carrying amount of buildings and improvements	2,420,943
Carrying amount of land and buildings and improvements, Total	3,899,844
Accumulated Depreciation	$ (585,688)
Date of Construction/ Acquisition	1996-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Orlando [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	74
Land	$ 138,215
Building and Improvements	513,462
Costs capitalized subsequent to acquisition	98,991
Carrying amount of land	147,199
Carrying amount of buildings and improvements	603,469
Carrying amount of land and buildings and improvements, Total	750,668
Accumulated Depreciation	$ (97,255)
Date of Construction/ Acquisition	1994-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Phoenix [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	46
Land	$ 135,243
Building and Improvements	394,219
Costs capitalized subsequent to acquisition	254,259
Carrying amount of land	148,027
Carrying amount of buildings and improvements	635,694
Carrying amount of land and buildings and improvements, Total	783,721
Accumulated Depreciation	$ (72,123)
Date of Construction/ Acquisition	1992-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Portland [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	39
Land	$ 118,738
Building and Improvements	276,956
Costs capitalized subsequent to acquisition	77,107
Carrying amount of land	134,824
Carrying amount of buildings and improvements	337,977
Carrying amount of land and buildings and improvements, Total	472,801
Accumulated Depreciation	$ (43,667)
Date of Construction/ Acquisition	2006-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Reno [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	16
Land	$ 23,918
Building and Improvements	142,279
Costs capitalized subsequent to acquisition	89,701
Carrying amount of land	25,393
Carrying amount of buildings and improvements	230,505
Carrying amount of land and buildings and improvements, Total	255,898
Accumulated Depreciation	$ (76,740)
Date of Construction/ Acquisition	1994-2015
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | San Antonio [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	20
Land	$ 25,735
Building and Improvements	95,828
Costs capitalized subsequent to acquisition	42,620
Carrying amount of land	25,958
Carrying amount of buildings and improvements	138,225
Carrying amount of land and buildings and improvements, Total	164,183
Accumulated Depreciation	$ (57,852)
Date of Construction/ Acquisition	1994-2016
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | San Francisco Bay Area [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	225
Land	$ 977,606
Building and Improvements	1,615,008
Costs capitalized subsequent to acquisition	445,972
Carrying amount of land	987,471
Carrying amount of buildings and improvements	2,051,115
Carrying amount of land and buildings and improvements, Total	3,038,586
Accumulated Depreciation	$ (686,136)
Date of Construction/ Acquisition	1993-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Seattle [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	98
Land	$ 629,092
Building and Improvements	1,107,409
Costs capitalized subsequent to acquisition	279,649
Carrying amount of land	648,115
Carrying amount of buildings and improvements	1,368,035
Carrying amount of land and buildings and improvements, Total	2,016,150
Accumulated Depreciation	$ (205,279)
Date of Construction/ Acquisition	2008-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | South Florida [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	110
Land	$ 511,731
Building and Improvements	917,668
Costs capitalized subsequent to acquisition	249,439
Carrying amount of land	525,570
Carrying amount of buildings and improvements	1,153,268
Carrying amount of land and buildings and improvements, Total	1,678,838
Accumulated Depreciation	$ (247,745)
Date of Construction/ Acquisition	1994-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Southern California [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	350
Land	$ 3,230,864
Building and Improvements	4,726,603
Costs capitalized subsequent to acquisition	1,298,305
Carrying amount of land	3,406,330
Carrying amount of buildings and improvements	5,849,442
Carrying amount of land and buildings and improvements, Total	9,255,772
Accumulated Depreciation	$ (1,380,360)
Date of Construction/ Acquisition	2005-2020
Operating Properties [Member] | United States: Markets [Member] | U.S. [Member] | Baltimore/Washington [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	75
Land	$ 300,564
Building and Improvements	722,249
Costs capitalized subsequent to acquisition	186,875
Carrying amount of land	312,814
Carrying amount of buildings and improvements	896,874
Carrying amount of land and buildings and improvements, Total	1,209,688
Accumulated Depreciation	$ (129,013)
Date of Construction/ Acquisition	1995-2020
Operating Properties [Member] | Other Americas Markets [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	34
Land	$ 260,872
Building and Improvements	391,738
Costs capitalized subsequent to acquisition	272,176
Carrying amount of land	290,126
Carrying amount of buildings and improvements	634,660
Carrying amount of land and buildings and improvements, Total	924,786
Accumulated Depreciation	$ (134,118)
Operating Properties [Member] | Other Americas Markets [Member] | Canada [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	33
Land	$ 260,142
Building and Improvements	389,451
Costs capitalized subsequent to acquisition	269,044
Carrying amount of land	288,184
Carrying amount of buildings and improvements	630,453
Carrying amount of land and buildings and improvements, Total	918,637
Accumulated Depreciation	$ (132,351)
Date of Construction/ Acquisition	2008-2020
Operating Properties [Member] | Other Americas Markets [Member] | Mexico [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	1
Land	$ 730
Building and Improvements	2,287
Costs capitalized subsequent to acquisition	3,132
Carrying amount of land	1,942
Carrying amount of buildings and improvements	4,207
Carrying amount of land and buildings and improvements, Total	6,149
Accumulated Depreciation	$ (1,767)
Date of Construction/ Acquisition	2011
Operating Properties [Member] | Europe Markets
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	14
Land	$ 96,625
Building and Improvements	79,573
Costs capitalized subsequent to acquisition	71,076
Carrying amount of land	94,421
Carrying amount of buildings and improvements	152,853
Carrying amount of land and buildings and improvements, Total	247,274
Accumulated Depreciation	$ (27,307)
Operating Properties [Member] | Europe Markets | France [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	4
Land	$ 11,560
Building and Improvements	5,248
Costs capitalized subsequent to acquisition	44,161
Carrying amount of land	10,071
Carrying amount of buildings and improvements	50,898
Carrying amount of land and buildings and improvements, Total	60,969
Accumulated Depreciation	$ (1,937)
Date of Construction/ Acquisition	2018-2020
Operating Properties [Member] | Europe Markets | Germany [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 11,401
Building and Improvements	5,918
Costs capitalized subsequent to acquisition	854
Carrying amount of land	11,401
Carrying amount of buildings and improvements	6,772
Carrying amount of land and buildings and improvements, Total	18,173
Accumulated Depreciation	$ (4,474)
Date of Construction/ Acquisition	2011
Operating Properties [Member] | Europe Markets | United Kingdom [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 60,218
Building and Improvements	28,711
Costs capitalized subsequent to acquisition	3,113
Carrying amount of land	60,226
Carrying amount of buildings and improvements	31,816
Carrying amount of land and buildings and improvements, Total	92,042
Accumulated Depreciation	$ (3,557)
Date of Construction/ Acquisition	2018-2019
Operating Properties [Member] | Europe Markets | Spain [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	6
Land	$ 13,446
Building and Improvements	39,696
Costs capitalized subsequent to acquisition	22,948
Carrying amount of land	12,723
Carrying amount of buildings and improvements	63,367
Carrying amount of land and buildings and improvements, Total	76,090
Accumulated Depreciation	$ (17,339)
Date of Construction/ Acquisition	2011-2018
Operating Properties [Member] | Asia Markets [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	7
Land	$ 35,667
Building and Improvements	139,576
Costs capitalized subsequent to acquisition	163,929
Carrying amount of land	35,936
Carrying amount of buildings and improvements	303,236
Carrying amount of land and buildings and improvements, Total	339,172
Accumulated Depreciation	$ (77,717)
Operating Properties [Member] | Asia Markets [Member] | Japan [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	2
Land	$ 35,667
Building and Improvements	0
Costs capitalized subsequent to acquisition	159,733
Carrying amount of land	35,936
Carrying amount of buildings and improvements	159,464
Carrying amount of land and buildings and improvements, Total	195,400
Accumulated Depreciation	$ (15,293)
Date of Construction/ Acquisition	2016-2019
Operating Properties [Member] | Asia Markets [Member] | Singapore [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of buildings | Property	5
Land	$ 0
Building and Improvements	139,576
Costs capitalized subsequent to acquisition	4,196
Carrying amount of land	0
Carrying amount of buildings and improvements	143,772
Carrying amount of land and buildings and improvements, Total	143,772
Accumulated Depreciation	$ (62,424)
Date of Construction/ Acquisition	2011