Employee Benefit Plans (The Obligations, Plan Assets And Funding Status Of The Non-U.S. Plans) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at end of prior year	$ 29,231	$ 26,977
Cumulative foreign exchange effect	669	(876)
Service cost	1,870	1,708	1,506
Interest cost	1,367	1,400	1,219
Plan participants contributions	827	763
Actuarial loss	5,179	455
Benefits paid	(1,552)	(1,196)
Effect of curtailment and settlement	(40)	0
Projected benefit obligation at end of year	37,551	29,231	26,977
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at end of prior year	26,109	24,108
Cumulative foreign exchange effect	515	(594)
Actual return on plan assets	4,771	1,203
Employer contributions	1,888	1,825
Benefits paid	(1,552)	(1,196)
Employee contributions	827	763
Fair value of plan assets at end of year	32,558	26,109	24,108
Ending funded status	(4,993)	(3,122)
Accrued benefit liability (non-current liability)	(4,993)	(3,122)
Accumulated other comprehensive income	(928)	663	1,115	735
Net amount recognized	$ (4,065)	$ (3,785)