GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Goodwill [Roll Forward]
Beginning Balance	$ 2,231,582	$ 2,065,103
Goodwill acquired during year	16,725	173,784
Goodwill allocation adjustments	(5,875)	6,011
Changes due to foreign currency fluctuations	(1,835)	(13,316)
Ending Balance	2,240,597	2,231,582
United States
Goodwill [Roll Forward]
Beginning Balance	1,678,077	1,616,286
Goodwill acquired during year	12,600	57,250
Goodwill allocation adjustments	(273)	4,541
Ending Balance	1,690,404	1,678,077
International
Goodwill [Roll Forward]
Beginning Balance	553,505	448,817
Goodwill acquired during year	4,125	116,534
Goodwill allocation adjustments	(5,602)	1,470
Changes due to foreign currency fluctuations	(1,835)	(13,316)
Ending Balance	$ 550,193	$ 553,505