SUPPLEMENTAL CASH FLOW DISCLOSURES - Schedule of Cash Flow Disclosures (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Supplemental Cash Flow Elements [Abstract]
Interest paid during the year	$ 30,211	$ 19,372	$ 18,445
Income taxes paid during the year, net of amount refunded	121,563	147,958	125,212
Fair value of assets acquired	3,118,420	156,020	454,596
Liabilities assumed	1,453,382	20,789	124,005
Non-controlling interest assumed	760,343	0	0
Stock and cash paid	904,695	135,231	330,591
Less: Cash acquired	186,903	5,681	30,154
Stock used for acquisition	534,679	0	0
Net cash paid	$ 183,113	$ 129,550	$ 300,437