Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule of future minimum rental payments for operating leases

Future minimum lease payments under non-cancelable operating leases as of December 31, 2012 are as follows:

	Amount
Year ended December 31,
2013	$	2,572
2014	1,546
2015	643
2016	279
2017	101
Thereafter	—
	$	5,141