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Investment Securities - Components of Investment Securities Gains and Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Available for sale securities:
Gains realized on sales	$ 0	$ 108		$ 206
Losses realized on sales	0	0
Other-than-temporary impairment recognized	0	0
Other investment securities:
Fair value adjustments, net	0	0	$ 1
Investment securities gains, net	0	108	1	206
Proceeds from sale of U S treasury securities	$ 0	$ 26,100	$ 0	$ 51,810

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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-Publisher FASB
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-Section 50
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Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of other-than-temporary impairment (OTTI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), recognized in earnings and other comprehensive loss (OCI).

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The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

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