PROPERTIES (Pro Forma Acquisition Results) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings per share - diluted:
Net income - as reported	$ 0.27	$ 0.63	$ 0.34	$ 0.34	$ 0.31	$ 0.28	$ 0.39	$ 0.42	$ 1.58	$ 1.40	$ 0.51
Pro Forma [Member]
Business Acquisition, Pro Forma Information [Abstract]
Pro forma revenues									$ 950,318	$ 938,782
Pro forma net income									$ 362,220	$ 321,232
Earnings per share - diluted:
Net income - as reported									$ 1.58	$ 1.40
Net income - pro forma									$ 1.60	$ 1.48