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Supplemental Cash Flow Information
 9 Months Ended
Sep. 30, 2013
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information
12. Supplemental Cash Flow Information

 

     Nine months ended
September 30,		  
     2013      2012  
     (in thousands)  

Cash paid (refunded) for income taxes, net

    $ 755       $ 163   

Common stock repurchased for RSU tax withholdings

    $ 246       $ 200