SUPPLEMENTAL CASH FLOW DISCLOSURES (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Supplemental Cash Flow Elements [Abstract]
Interest paid during the year	$ 81,756	$ 75,317	$ 30,211
Income taxes paid during the year, net of amount refunded	83,949	89,379	121,563
Fair value of assets acquired	91,758	452,209	3,118,420
Liabilities assumed	32,908	207,788	1,453,382
Non-controlling interest (acquired) assumed	0	(761,786)	760,343
Stock and cash paid	58,850	1,006,207	904,695
Less: Cash acquired	7,697	35,408	186,903
Stock used for acquisition	0	25,500	534,679
Net cash paid	$ 51,153	$ 945,299	$ 183,113