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Variable Interest Entities - Narrative (Details) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Variable Interest Entities |  |  |
Impairment losses | $ 0 | $ 0 |
Other assets |  |  |
Variable Interest Entities |  |  |
Carrying value of equity investments in LIHTCs | $ 49,074,000 |  | $ 45,953,000
CDE |  |  |
Variable Interest Entities |  |  |
Tax credit period | 7 years |  |
LIHTC |  |  |
Variable Interest Entities |  |  |
Tax credit period | 10 years |  |
Tax credit compliance period | 15 years |  |

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- Definition Amount of write-down from impairment of an investment in a qualified affordable housing project. + 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 (f) -URI http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985 + Details
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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 + Details
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