Commitments And Contingencies (Tables)

12 Months Ended

Dec. 31, 2011

Commitments And Contingencies [Abstract]

Summary Of Rental Expense

	2011			2010			2009
Summary of rental expense
Minimum rentals	$	8,914		$	9,088		$	9,724
Less: Sublease rentals		(868	)		(938	)		(859	)
Rental expense	$	8,046		$	8,150		$	8,865

Summary Of Future Lease Commitments

Summary of future lease commitments
2012		7,991
2013		6,272
2014		5,132
2015		5,250
2016		5,041
Thereafter		13,427
Minimum payments required (a)	$	43,113

(a) Minimum payments have not been reduced by sublease rentals of $2,117 due in future years under noncancelable subleases.