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, 2011	Dec. 31, 2010	Dec. 31, 2009
Employee Benefit Plans [Abstract]
Projected benefit obligation at end of prior year	$ 26,977	$ 25,468
Cumulative foreign exchange effect	(876)	(1,850)
Service cost	1,708	1,506	1,315
Interest cost	1,400	1,219	1,352
Plan participants contributions	763	720
Actuarial loss	455	863
Benefits paid	(1,196)	(949)
Projected benefit obligation at end of year	29,231	26,977	25,468
Fair value of plan assets at end of prior year	24,108	21,841
Cumulative foreign exchange effect	(594)	(1,599)
Actual return on plan assets	1,203	2,324
Employer contributions	1,825	1,771
Benefits paid	(1,196)	(949)
Plan participant contributions	763	720
Fair value of plan assets at end of year	26,109	24,108	21,841
Ending funded status	(3,122)	(2,869)
Accrued benefit liability (non-current liability)	(3,122)	(2,869)
Accumulated other comprehensive income	(663)	(1,115)	(735)
Net amount recognized	$ (3,785)	$ (3,984)