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Goodwill (Tables)
6 Months Ended
Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of changes in the carrying amount of goodwill
The changes in the carrying amount of goodwill during the six months ended June 30, 2014, were as follows:
 
International
 
North America
 
Total
 
(In thousands)
Balance at January 1, 2014
$
148,033

 
$
133,681

 
$
281,714

Effect of foreign exchange rate changes
337

 

 
337

Acquisition
1,282

 

 
1,282

Balance at June 30, 2014
$
149,652

 
$
133,681

 
$
283,333