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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2013
Loss Contingency [Abstract]  
Schedule of future minimum payments under non-cancellable operating leases
Future minimum payments under noncancellable operating leases are as follows at December 31, 2013 (in thousands): 
 
Lease Payments
Years ending December 31,
 
2014
$
2,968

2015
3,053

2016
3,063

2017
2,677

2018
2,736

2019 and beyond
3,054

Total
$
17,551