PROPERTY, PLANT AND EQUIPMENT, INTANGIBLE ASSETS AND GOODWILL - Narrative (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jan. 31, 2017	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015
Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill included in intangible assets acquired		$ 4,070,142		$ 4,066,575	$ 4,128,887
Total amortization expense related to definite-lived intangible assets		$ 49,100	$ 55,300
Held-for-sale | Indianapolis, Indiana market
Disposal Groups, Including Discontinued Operations [Line Items]
Cash proceeds from disposal	$ 43,000
Disposed of by sale | Indianapolis, Indiana market
Disposal Groups, Including Discontinued Operations [Line Items]
Net gain related to sale	28,600
Certain assets in Atlanta, Georgia
Disposal Groups, Including Discontinued Operations [Line Items]
Fair value of assets acquired	39,600
Fixed assets acquired	9,900
Intangible assets acquired	29,500
Goodwill included in intangible assets acquired	2,300
Other assets acquired	$ 200