SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION (Narrative 1) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]
Noncash consideration exchanged	$ 185.6	$ 27.2	$ 35.1
Reported amount of real estate in excess of the tax basis	$ 600.0