GOODWILL (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill by operating segment consist of the following (in thousands):

	United States		International		Total
Goodwill, December 31, 2011	$	67,465	$	24,319	$	91,784
Acquisitions	625,174		—		625,174
Effect of foreign currency translation	—		1,120		1,120
Goodwill, December 31, 2012	692,639		25,439		718,078
Effect of foreign currency translation	—		509		509
Goodwill, December 31, 2013	$	692,639	$	25,948	$	718,587