Unaudited Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 6,756	$ 14,112
Unrealized net gains (losses) on securities:
Unrealized net gains (losses) arising during the period	5,990	(775)
Less: reclassification adjustment for net gains (losses) included in net income	655	7,275
Change in unrealized gains (losses) on investments	5,335	(8,050)
Foreign currency translation adjustments	65	419
Other comprehensive income (loss)	5,400	(7,631)
Comprehensive income	$ 12,156	$ 6,481

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

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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