Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net income	$ 17,296	$ 9,218	$ 62,191	$ 44,294
Other comprehensive income:
Foreign currency translation adjustments	7,006	235	19,753	947
Pension plan amortization of net actuarial loss and prior service cost, net of tax of $118, $100, $350 and $300 at respective dates	250	202	737	606
Comprehensive income	$ 24,552	$ 9,655	$ 82,681	$ 45,847

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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Amount, before tax, of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan.

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