Business Segments - Segment Reporting, Reconciliation of Revenues, Operating Income and Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total revenues	$ 1,266,124	$ 790,372	$ 2,244,365	$ 1,562,424
Operating income	611,987	442,056	1,080,044	818,646
General and administrative expenses	64,664	66,276	134,353	135,977
Depreciation and amortization expenses	398,195	284,376	744,165	568,385
Gains on dispositions of development properties and land, net	86,416	196,941	249,166	239,382
Gains on other dispositions of investments in real estate, net	43,939	27,254	75,430	173,021
Operating income	611,987	442,056	1,080,044	818,646
Earnings from unconsolidated entities, net	54,142	48,556	142,872	105,222
Interest expense	(81,298)	(59,122)	(156,940)	(119,629)
Interest and other income, net	1,027	4,312	1,397	12,222
Foreign currency and derivative gains (losses), net	(60,836)	2,041	52,493	10,775
Losses on early extinguishment of debt, net	(23,573)	(385)	(66,340)	(2,501)
Earnings before income taxes	501,449	437,458	1,053,526	824,735
Total assets	55,221,857		55,221,857		$ 40,031,850
Investments in and advances to unconsolidated entities	7,201,006		7,201,006		6,237,371
Assets held for sale or contribution	1,948,508		1,948,508		720,685
Lease right-of-use assets	497,802		497,802		486,330
Cash and cash equivalents	549,129	401,190	549,129	401,190	1,088,855	$ 343,856
Other assets	2,377,978		2,377,978		1,711,857
Real Estate Operations [Member]
Segment Reporting Information [Line Items]
Total assets	45,104,029		45,104,029		31,590,756
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	944,491	568,513	1,633,966	1,110,605
Operating income	944,491	568,513	1,633,966	1,110,605
Total assets	45,143,552		45,143,552		31,630,924
Operating Segments [Member] | Real Estate Operations [Member]
Segment Reporting Information [Line Items]
Total revenues	945,466	701,228	1,827,116	1,399,475
Operating income	705,378	516,575	1,344,836	1,022,920
Operating income	705,378	516,575	1,344,836	1,022,920
Operating Segments [Member] | Strategic Capital [Member]
Segment Reporting Information [Line Items]
Total revenues	320,658	89,144	417,249	162,949
Operating income	239,113	51,938	289,130	87,685
Operating income	239,113	51,938	289,130	87,685
Total assets	39,523		39,523		40,168
Operating Segments [Member] | U.S. [Member] | Real Estate Operations [Member]
Segment Reporting Information [Line Items]
Total revenues	896,879	649,433	1,726,262	1,301,302
Operating income	675,126	481,631	1,277,730	952,707
Operating income	675,126	481,631	1,277,730	952,707
Total assets	41,623,003		41,623,003		27,999,868
Operating Segments [Member] | U.S. [Member] | Strategic Capital [Member]
Segment Reporting Information [Line Items]
Total revenues	256,517	20,536	290,859	40,804
Operating income	203,582	7,794	217,206	11,121
Operating income	203,582	7,794	217,206	11,121
Total assets	13,893		13,893		14,529
Operating Segments [Member] | Other Americas [Member] | Real Estate Operations [Member]
Segment Reporting Information [Line Items]
Total revenues	19,736	23,847	45,815	47,712
Operating income	13,817	15,865	33,273	34,918
Operating income	13,817	15,865	33,273	34,918
Total assets	1,061,404		1,061,404		1,332,237
Operating Segments [Member] | Other Americas [Member] | Strategic Capital [Member]
Segment Reporting Information [Line Items]
Total revenues	9,596	13,624	18,707	21,524
Operating income	6,348	9,355	11,527	14,777
Operating income	6,348	9,355	11,527	14,777
Operating Segments [Member] | Europe [Member] | Real Estate Operations [Member]
Segment Reporting Information [Line Items]
Total revenues	17,988	12,263	33,490	20,820
Operating income	8,655	6,888	18,810	12,432
Operating income	8,655	6,888	18,810	12,432
Total assets	1,518,215		1,518,215		1,379,579
Operating Segments [Member] | Europe [Member] | Strategic Capital [Member]
Segment Reporting Information [Line Items]
Total revenues	31,532	33,539	64,122	62,377
Operating income	19,114	23,223	39,708	42,374
Operating income	19,114	23,223	39,708	42,374
Total assets	25,280		25,280		25,280
Operating Segments [Member] | Asia [Member] | Real Estate Operations [Member]
Segment Reporting Information [Line Items]
Total revenues	10,863	15,685	21,549	29,641
Operating income	7,780	12,191	15,023	22,863
Operating income	7,780	12,191	15,023	22,863
Total assets	901,407		901,407		879,072
Operating Segments [Member] | Asia [Member] | Strategic Capital [Member]
Segment Reporting Information [Line Items]
Total revenues	23,013	21,445	43,561	38,244
Operating income	10,069	11,566	20,689	19,413
Operating income	10,069	11,566	20,689	19,413
Total assets	350		350		359
Reconciling Items [Member]
Segment Reporting Information [Line Items]
Operating income	611,987	442,056	1,080,044	818,646
General and administrative expenses	(64,664)	(66,276)	(134,353)	(135,977)
Depreciation and amortization expenses	(398,195)	(284,376)	(744,165)	(568,385)
Gains on dispositions of development properties and land, net	86,416	196,941	249,166	239,382
Gains on other dispositions of investments in real estate, net	43,939	27,254	75,430	173,021
Operating income	611,987	442,056	1,080,044	818,646
Earnings from unconsolidated entities, net	54,142	48,556	142,872	105,222
Interest expense	(81,298)	(59,122)	(156,940)	(119,629)
Interest and other income, net	1,027	4,312	1,397	12,222
Foreign currency and derivative gains (losses), net	(60,836)	2,041	52,493	10,775
Losses on early extinguishment of debt, net	(23,573)	$ (385)	(66,340)	$ (2,501)
Total assets	10,078,305		10,078,305		8,400,926
Investments in and advances to unconsolidated entities	7,201,006		7,201,006		6,237,371
Assets held for sale or contribution	1,948,508		1,948,508		720,685
Lease right-of-use assets	110,124		110,124		111,439
Cash and cash equivalents	549,129		549,129		1,088,855
Other assets	$ 269,538		$ 269,538		$ 242,576