Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 8,258	$ 251
Securities available-for-sale:
Net unrealized gains (losses) arising during the period, net of tax	263	8,978
Less: amortization of net unrealized holding gains to income, net of tax	(357)	(520)
Other comprehensive income (loss)	(94)	8,458
Comprehensive income (loss)	$ 8,164	$ 8,709