Operating Leases (Tables)

12 Months Ended

Dec. 31, 2012

Leases, Operating [Abstract]

Future rental commitments over the next five years under non-cancelable operating leases

A summary of future rental commitments over the next five years under non-cancelable operating leases is as follows (in thousands):

Years Ending December 31,
2013	$	8,641
2014	8,242
2015	7,955
2016	8,978
2017	8,900
Total	$	42,716