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Commitments, Contingencies and Guarantees (Tables)
12 Months Ended
Dec. 31, 2012
Commitments Contingencies and Guarantees [Abstract]  
Minimum Aggregate Future Obligations Under Non-Cancelable Leases
The minimum aggregate future obligations under non-cancelable leases as of December 31, 2012 were as follows (in thousands):
 
 
 
 
Operating
Leases
2013
$
33,208

2014
30,699

2015
28,140

2016
17,478

2017
15,918

Thereafter
29,674

Total
$
155,117