v3.7.0.1

Securities - Summary of AFS Securities Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	$ 503,674	$ 518,491
Gross Unrealized gains	562	871
Gross Unrealized losses	(10,253)	(9,784)
Estimated Fair Value	493,983	509,578
U.S. Treasury Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	300	300
Gross Unrealized losses	(2)	(3)
Estimated Fair Value	298	297
Agency Mortgage-backed Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	461,954	476,163
Gross Unrealized gains	264	160
Gross Unrealized losses	(7,794)	(7,414)
Estimated Fair Value	454,424	468,909
Beneficial interests in FHLMC securitization
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	41,420	42,028
Gross Unrealized gains	298	711
Gross Unrealized losses	(2,457)	(2,367)
Estimated Fair Value	$ 39,261	$ 40,372

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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