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Fair Value Measurements - Changes in Level 3 (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Changes in Level 3 |  |
Transfers into Level 3 | $ 0 | $ 0
Transfers out of Level 3 | 0 | 0
States and political subdivisions |  |
Changes in Level 3 |  |
Beginning balance | 4,319,000 | 5,419,000
Total gains or losses |  |
Included in earnings (or changes in net assets) | (20,000) | (20,000)
Included in other comprehensive income | 801,000 | (628,000)
Purchases, issuances, sales, and settlements |  |
Purchases | 9,919,000 | 13,086,000
Settlements | (927,000) | (13,538,000)
Ending balance | 14,092,000 | 4,319,000
Mortgage Servicing Rights [Member] |  |
Changes in Level 3 |  |
Beginning balance | 4,224,000 | 5,935,000
Total gains or losses |  |
Included in earnings (or changes in net assets) | 2,420,000 | (2,483,000)
Purchases, issuances, sales, and settlements |  |
Issuances | 1,612,000 | 2,288,000
Settlements | (1,159,000) | (1,516,000)
Ending balance | $ 7,097,000 | $ 4,224,000

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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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