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GOODWILL (Tables)
 12 Months Ended
Dec. 31, 2016
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, 2014
$
1,114,363

 
$
24,442

 
$
1,138,805

Acquisition
112,947

 
2,400

 
115,347

Effect of foreign currency translation
—

 
(1,207
)
 
(1,207
)
Goodwill, December 31, 2015
1,227,310

 
25,635

 
1,252,945

Acquisitions
467

 
5,933

 
6,400

Effect of foreign currency translation
—

 
(4,479
)
 
(4,479
)
Goodwill, December 31, 2016
$
1,227,777

 
$
27,089

 
$
1,254,866