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Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Currency translation adjustments, income tax expense	$ 0	$ (56)	$ 0	$ 539
Change in unrecognized net periodic pension costs, income tax benefit	90	132	187	266
Other, income tax expense	$ 8	$ 8	$ 16	$ 16

Tax effect of current period adjustment resulting from gains and losses on intercompany foreign currency transactions that are of a long-term-investment nature, that is, settlement is not planned or anticipated in the foreseeable future. Applies when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting entity's financial statements. Reported in equity as part of accumulated other comprehensive income.

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