ACQUISITIONS AND DIVESTITURES - Aggregate Purchase Price Paid for Acquisitions and Other Adjustments to Consideration (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Combinations [Abstract]
Cash	$ 161,936	$ 224,367	$ 469,209
Promissory notes	64,581	70,670	38,461
Deferred consideration	31,149	17,681	11,695
Contingent consideration	4,371	9,190	7,404
Total purchase price	$ 262,037	$ 321,908	$ 526,769