Retirement Benefits (Pretax Amounts Recognized In Accumulated Other Comprehensive Income (Loss)-2011) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011
U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net loss in current year	$ (15,374)
Amortization of prior service cost (credit)	178
Amortization of net loss (gain)	4,678
Total	(10,518)
Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net loss in current year	(1,855)
Prior service cost	(9)
Amortization of prior service cost (credit)	10
Amortization of net loss (gain)	432
Exchange rate effect on amounts in OCI	273
Total	(1,149)
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net loss in current year	(60)
Amortization of prior service cost (credit)	(346)
Amortization of net loss (gain)	190
Exchange rate effect on amounts in OCI	(15)
Total	$ (231)

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