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Fair Value Measurements - Changes in Level 3 (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
States and political subdivisions |  |
Changes in Level 3 |  |
Beginning balance | $ 14,092 | $ 4,319
Total gains or losses |  |
Included in earnings (or changes in net assets) |  | (3)
Included in other comprehensive income | (938) | 299
Purchases, issuances, sales, and settlements |  |
Purchases | 1,076 | 58
Settlements | (364) | (32)
Ending balance | 13,833 | 4,641
Changes in Level 3 (liabilities) |  |
Included in earnings (or changes in net assets) | (33) |
Mortgage Servicing Rights [Member] |  |
Changes in Level 3 |  |
Beginning balance | 7,097 | 4,224
Total gains or losses |  |
Included in earnings (or changes in net assets) |  | 1,485
Purchases, issuances, sales, and settlements |  |
Issuances | 301 | 552
Settlements | (250) | (372)
Ending balance | 10,376 | $ 5,889
Changes in Level 3 (liabilities) |  |
Included in earnings (or changes in net assets) | $ 3,228 |

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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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