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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net income	$ 9,617	$ 5,065
Cumulative translation adjustments	189	547
Pension and postretirement medical liability adjustments, net of tax	510	1,276
Other comprehensive income	699	1,823
Comprehensive income	$ 10,316	$ 6,888

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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.

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