Unaudited Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Unaudited Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net income	$ 14,112	$ 6,243
Unrealized net gains (losses) on securities:
Unrealized net gains (losses) arising during the period	(775)	622
Less: reclassification adjustment for net gains (losses) included in net income	7,275	(514)
Change in unrealized gains on investments	(8,050)	1,136
Foreign currency translation adjustments	419	(779)
Other comprehensive income (loss)	(7,631)	357
Comprehensive income	$ 6,481	$ 6,600

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

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Amount after tax and reclassification adjustments of other comprehensive income (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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