Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Net income	$ 14,477	$ 10,575
Other comprehensive income, net of tax:
Foreign currency translation adjustments, net of $0 tax in 2017 and 2016	1,306	498
Change in unrealized gain on available-for-sale securities, net of $0 tax in 2017 and 2016	202	210
Net current period other comprehensive income	1,508	708
Comprehensive income	$ 15,985	$ 11,283

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.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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