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Securities - Amortized Cost and Fair Value of Debt Securities by Contractual Maturity - Securities Available-for-sale (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Available-for-sale, Amortized Cost
Due 3 months or less	$ 14,988
Due after 3 months through one year	44,809
Agency mortgage-backed securities	170,215
Total	230,012	$ 402,537
Available-for-sale, Estimated Fair Value
Due 3 months or less	15,039
Due after 3 months through one year	45,409
Agency mortgage-backed securities	175,326
Total	$ 235,774	$ 404,825

X

- Definition

Amount after adjustments of available-for-sale debt securities at cost, maturing after 3 months through one year following the latest balance sheet.

+ References

No definition available.

+ Details

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- Definition

Fair value of available-for-sale debt securities maturing after 3 months through one year following the latest balance sheet.

+ References

No definition available.

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- Definition

Available For Sale Securities Debt Maturities Rolling Within Three Months Or Less Amortized Cost Basis

+ References

No definition available.

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- Definition

Fair value of available-for-sale debt securities maturing within three months or less following the latest balance sheet.

+ References

No definition available.

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- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454

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- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping.

+ References

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- Definition

Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping.

+ References

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-Topic 320
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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