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COMMITMENTS AND CONTINGENCIES: (Tables)
 12 Months Ended
Dec. 31, 2012
COMMITMENTS AND CONTINGENCIES:  
Schedule of future minimum payments under the leases

Future minimum payments under the leases are as follows (in thousands):

 

2013

 

$

4,682

 

2014

 

4,512

 

2015

 

3,820

 

2016

 

3,557

 

2017

 

3,863

 

2018 and thereafter

 

4,316

 

 

 

$

24,750