Commitments And Contingencies (Tables)

12 Months Ended

Dec. 31, 2011

Commitments And Contingencies [Abstract]

Future Minimum Commitments For Operating Leases

Year Ending December 31,	Operating Leases
	(Amounts in thousands)
2012	$	15,821
2013		10,551
2014		5,410
2015		3,185
2016		2,436
Thereafter		1,624