v3.8.0.1

Securities - Summary of AFS Securities Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	$ 527,703	$ 526,560
Gross Unrealized gains	2,027	2,098
Gross Unrealized losses	(16,663)	(9,294)
Estimated Fair Value	513,067	519,364
U.S. Treasury Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	499	499
Gross Unrealized losses	(6)	(6)
Estimated Fair Value	493	493
Agency Mortgage-backed Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	453,596	471,131
Gross Unrealized gains		287
Gross Unrealized losses	(14,728)	(7,399)
Estimated Fair Value	438,868	464,019
Corporate Bonds
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	39,000	35,930
Gross Unrealized gains	100	1,811
Gross Unrealized losses		(1,889)
Estimated Fair Value	39,100	35,852
Beneficial interest - FHLMC securitization
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	34,608	19,000
Gross Unrealized gains	1,927
Gross Unrealized losses	(1,929)
Estimated Fair Value	$ 34,606	$ 19,000

X

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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+ References

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-Publisher FASB
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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

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-Name Accounting Standards Codification
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