Schedule III - Changes in Total Real Estate Assets (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Real Estate And Accumulated Depreciation Disclosure [Abstract]
Balance at beginning of period		$ 4,781,149	$ 5,438,148	$ 3,968,042
Acquisitions		2,436,265	758,619	1,256,245
Transfers from construction in progress			25,513	74,441
Additions		173,785	96,775	36,828
Dispositions		(106,536)	(1,318,238)	(53,372)
Other	[1]	27,823	(219,668)	155,964
Balance at end of period		$ 7,312,486	$ 4,781,149	$ 5,438,148

[1] Includes foreign currency fluctuations for all years, $61.4 million of right-of-use assets (2019 only), and purchase price allocation adjustments (2017 only).