Employee Retirement And Profit Sharing Plans (Reconciliation Of Projected Benefit Obligation And The Fair Value Of Plans Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets at end of year	$ 233,995	$ 231,822
Employee Retirement And Profit Sharing Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	307,531	294,569
Service cost	4,151	3,699	3,147
Interest cost	15,735	16,941	16,947
Plan participants' contributions	68	66
Actuarial (gain) loss	33,071	16,619
Benefits paid	(25,677)	(20,822)
Plan settlements	(1,730)	(2,914)
Exchange rate changes	(401)	(627)
Benefit obligation at end of year	332,748	307,531	294,569
Fair value of plan assets at beginning of year	231,822	223,369
Actual return on plan assets	11,714	22,240
Employer contribution	18,073	10,277
Plan settlements	(1,730)	(2,914)
Exchange rate changes	(275)	(394)
Fair value of plan assets at end of year	233,995	231,822	223,369
Funded status at end of year	$ (98,753)	$ (75,709)