Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2012

Commitments and Contingencies [Abstract]

Summary of aggregate undiscounted minimum commitments

Year ending December 31, 2012	Amount
2012	$	780
2013		5,985
2014		4,731
2015		2,992
2016		1,800
Thereafter		1,195
Total	$	17,483