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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]  
Commitments for Minimum Lease Payments Under Non Cancelable Operating Leases
Commitments for minimum lease payments under non-cancelable operating and capital leases as of December 31, 2015 are as follows (in thousands):
 
Operating Leases
 
Capital Leases
2016
$
7,612

 
$
237

2017
5,841

 
171

2018
3,048

 
177

2019
2,082

 
46

2020
1,779

 

Thereafter
1,857

 

 
$
22,219

 
$
631

Future Purchase Commitments
Future purchase commitments as of December 31, 2015, are as follows (in thousands):
2016
$
40,168

2017
1,885

2018
816

2019
448

 
$
43,317