GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Goodwill [Roll Forward]
Beginning Balance	$ 2,231,582	$ 2,065,103
Goodwill acquired during year	189,752	173,784
Goodwill allocation adjustments	(11,319)	6,011
Changes due to foreign currency fluctuations	11,333	(13,316)
Ending Balance	2,421,348	2,231,582
United States
Goodwill [Roll Forward]
Beginning Balance	1,678,077	1,616,286
Goodwill acquired during year	168,592	57,250
Goodwill allocation adjustments	(2,051)	4,541
Changes due to foreign currency fluctuations	0	0
Ending Balance	1,844,618	1,678,077
International
Goodwill [Roll Forward]
Beginning Balance	553,505	448,817
Goodwill acquired during year	21,160	116,534
Goodwill allocation adjustments	(9,268)	1,470
Changes due to foreign currency fluctuations	11,333	(13,316)
Ending Balance		$ 553,505