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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Other comprehensive income
Adjustments related to retirement plans tax expense	$ 42	$ 73	$ 51	$ 100

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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-Publisher FASB



-Name Accounting Standards Codification



-Topic 220



-SubTopic 10



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-Publisher FASB



-Name Accounting Standards Codification



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-Section 45



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-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



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-Paragraph 31



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-Publisher SEC



-Name Regulation S-X (SX)



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