Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies

Schedule of future minimum lease payments under non-cancelable operating leases

	Operating Leases
2013	$	50,532
2014		51,315
2015		44,400
2016		36,515
2017		30,248
Thereafter		67,950
Total minimum lease payments	$	280,960