GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Goodwill [Roll Forward]
Beginning Balance	$ 2,231,582	$ 2,065,103
Goodwill acquired during year	224,290	173,784
Purchase accounting allocation adjustments	(21,899)	6,011
Changes due to foreign currency fluctuations	(18,763)	(13,316)
Ending Balance	2,415,210	2,231,582
United States
Goodwill [Roll Forward]
Beginning Balance	1,678,077	1,616,286
Goodwill acquired during year	180,990	57,250
Purchase accounting allocation adjustments	(4,825)	4,541
Changes due to foreign currency fluctuations	0	0
Ending Balance	1,854,242	1,678,077
International
Goodwill [Roll Forward]
Beginning Balance	553,505	448,817
Goodwill acquired during year	43,300	116,534
Purchase accounting allocation adjustments	(17,074)	1,470
Changes due to foreign currency fluctuations	(18,763)	(13,316)
Ending Balance	$ 560,968	$ 553,505