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Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning balance	$ 172,521	$ 167,498
Other comprehensive income	60	1,841
Balance, ending period	174,853	171,545
Accumulated Net Investment Gain (Loss) Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning balance	(935)	1,123
Unrealized gains arising during the period	5	3,385
Reclassification of realized gains during the period	(3)	(536)
Related deferred taxes	(1)	(997)
Other comprehensive income	1	1,852
Balance, ending period	$ (934)	$ 2,975

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Accumulated Other Comprehensive Income (Loss) [Roll Forward]

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

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

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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