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Commitments and Contingencies (Tables)
 9 Months Ended
Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Lease Payments for Capital and Operating Leases
The following are the minimum annual lease payments due under these leases at September 30, 2013:
 
Operating Leases
 
Capital Leases
 
(in thousands)
Remainder of 2013
$
1,026

 
$
268

2014
3,693

 
815

2015
2,676

 
—

2016
1,850

 
—

2017
1,623

 
—

2018 and thereafter
295

 
—

Total minimum lease payments
$
11,163

 
1,083

Less amount representing interest
 
 
(12
)
Present value of minimum payments
 
 
1,071

Less current portion
 
 
(1,071
)
Capital lease obligations, noncurrent
 
 
$
—