Interim Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net Income	$ 10,562	$ 9,710	$ 19,221	$ 17,069
Other comprehensive (loss) income:
Foreign currency translation adjustments	(7,140)	5,830	(3,581)	(7,822)
Net gain on pension and other postretirement benefits	268	272	533	571
Other comprehensive (loss) income before income tax expense	(6,872)	6,102	(3,048)	(7,251)
Income tax expense related to items of other comprehensive (loss) income	(98)	(94)	(197)	(188)
Other comprehensive (loss) income	(6,970)	6,008	(3,245)	(7,439)
Comprehensive Income	$ 3,592	$ 15,718	$ 15,976	$ 9,630

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount before tax, after reclassification adjustments of gain (loss) on foreign currency translation adjustments, on foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.

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Amount before tax of (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit.

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

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