Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net income (loss)	$ 15,150	$ 14,171
Other comprehensive income (loss) before tax:
Unrealized gain (loss) on securities available-for-sale	1,866	8,643
Realized gain on investment securities included in net income	0	(11,996)
Unrealized gain (loss) on cash flow hedges	182	(11)
Other comprehensive income (loss) before taxes	2,048	(3,364)
Income tax effect	(296)	1,651
Other Comprehensive Income (Loss) After taxes	1,752	(1,713)
Comprehensive income	$ 16,902	$ 12,458

This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

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

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Amount before tax of other comprehensive income (loss) attributable to parent entity.

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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) attributable to parent entity.

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

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Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

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