Commitments And Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Commitments

Several of the leases provide for renewal terms. At December 31, 2012, future minimum lease commitments were as follows:

2013	$	19,518
2014	17,707
2015	13,929
2016	11,642
2017	10,918
Thereafter	26,129
	$	99,843