GOODWILL (Tables)
 3 Months Ended
Mar. 31, 2015
Goodwill [Abstract]  
Schedule of goodwill
The changes in the carrying amount of goodwill by operating segment consist of the following (in thousands):
 
North America
 
International
 
Total
Goodwill, December 31, 2013
$
692,639

 
$
25,948

 
$
718,587

Acquisition
421,724

 
—

 
421,724

Effect of foreign currency translation
—

 
(1,506
)
 
(1,506
)
Goodwill, December 31, 2014
1,114,363

 
24,442

 
1,138,805

Effect of foreign currency translation
—

 
(1,098
)
 
(1,098
)
Goodwill, March 31, 2015
$
1,114,363

 
$
23,344

 
$
1,137,707