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COMMITMENTS AND CONTINGENCIES
 12 Months Ended
Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]  
COMMITMENTS AND CONTINGENCIES
12. COMMITMENTS AND CONTINGENCIES

Leases

We lease facilities under non-cancelable operating leases. At December 31, 2012, the minimum lease commitments for all leased facilities, net of sublease income, are as follows:

 

YEAR ENDING DECEMBER 31,     OPERATING LEASES
2013
               $ 3,073   
2014
                   3,185   
2015
                   1,069   
2016
                  —    
Thereafter
                  —    
Total minimum lease payments
               $ 7,327   
 

Rent expense under non-cancelable operating leases was approximately $2,866 for the years ended December 31, 2012, 2011, and 2010.