Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Consolidated Statements of Comprehensive Income
Net income	$ 13,915	$ 9,506
Other comprehensive income:
Foreign currency translation adjustments	1,021	1,915
Amortization of actuarial loss and other adjustments from pension plan	30	28
Total other comprehensive income	1,051	1,943
Comprehensive income	$ 14,966	$ 11,449

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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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, 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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