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Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 2,998	$ 6,668
Other comprehensive income:
Foreign currency translation adjustment (net of tax of $1,033 in 2012 and $1,959 in 2011)	4,973	3,621
Derivative financial instruments adjustment (net of tax of $289 in 2012 and $48 in 2011)	471	78
Amortization of prior service costs and net gains or losses (net of tax of $943 in 2012 and $568 in 2011)	1,631	1,010
Other comprehensive income	7,075	4,709
Comprehensive income	$ 10,073	$ 11,377

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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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