Other Assets and Other Liabilities - Schedule of Other Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Tenant security deposits	$ 209,741	$ 206,301
Unearned rents	71,392	90,233
Income tax liabilities	56,988	68,666
Indemnification liability	39,480	32,843
Derivative liabilities	32,229	1,268
Environmental liabilities	25,728	24,572
Acquired lease intangibles	24,769	31,707
Deferred income	15,754	21,629
Value added taxes payable	10,081	15,888
Other	173,737	134,212
Total	$ 659,899	$ 627,319