Investments in Qualified Affordable Housing (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Investment [Line Items]
Amortization Method Qualified Affordable Housing Project Investments, Amortization	$ 6,927	$ 7,322	$ 10,278
Affordable Housing Tax Credits and Other Tax Benefits, Amount	8,800	9,000	9,400
Amortization Method Qualified Affordable Housing Project Investments	53,070	50,347
Affordable Housing Program Obligation	25,894	22,282
Qualified Affordable Housing [Domain]
Investment [Line Items]
Amortization Method Qualified Affordable Housing Project Investments	$ 53,070	$ 50,347
Change in Accounting Method Accounted for as Change in Estimate [Member]
Investment [Line Items]
Amortization Method Qualified Affordable Housing Project Investments, Amortization			$ 3,100

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- Definition

Amount of obligation related to Affordable Housing Program (AHP) assessments required by the Federal Home Loan Bank Act of 1932.

+ References

No definition available.

+ Details

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- Definition

Amount of affordable housing tax credits and other tax benefits recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 740
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985

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- Definition

Amount of investment in qualified affordable housing projects.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 740
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985

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- Definition

Amount of amortization expense of investment in qualified affordable housing projects.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 740
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985

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