Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Minimum Future Obligations Under All Non-Cancelable Operating Leases

Leases. Minimum future obligations under all non-cancelable operating leases as of December 31, 2012 are as follows (in thousands):

	Operating     Leases
2013	$	10,699
2014		7,336
2015		3,788
2016		2,501
2017		2,074
Thereafter		5,099
Total minimum lease payments	$	31,497

Schedule of Rent Expense for Operating Leases

Rent expense for operating leases charged to operations was as follows (in thousands):

	Year Ended December 31,
		2012		2011		2010
Rent expense	$	15,254	$	13,907	$	11,469