Defined Benefit Plans (Schedule of Net Benefit Costs and Amounts Recognized in Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 258	$ 267	$ 544	$ 535
Interest cost	2,762	2,697	5,056	5,396
Amortization of unrecognized net loss	218	97	419	195
Expected return on plan assets	(2,623)	(2,575)	(5,236)	(5,148)
Total expense	615	486	783	978
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	939		1,899
Interest cost	1,855		3,750
Total expense	$ 2,794		$ 5,649