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Allowance for Credit Losses and Allowance for Unfunded Commitments and Letters of Credit (Allowance for Credit Losses) (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Financing Receivable, Allowance for Credit Loss | $ 146,949 | $ 148,294 | $ 155,578 | $ 149,140
Financing Receivable, Allowance for Credit Loss, Writeoff | (1,901) | (3,466) |  |
Financing Receivable, Allowance for Credit Loss, Recovery | 1,072 | 3,420 |  |
Recapture for credit losses | (7,800) | (800) |  |
Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Financing Receivable, Allowance for Credit Loss | 57,307 | 57,050 | 61,254 | 68,934
Financing Receivable, Allowance for Credit Loss, Writeoff | 0 | 0 |  |
Financing Receivable, Allowance for Credit Loss, Recovery | 14 | 36 |  |
Recapture for credit losses | (3,961) | (11,920) |  |
Commercial Business [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Financing Receivable, Allowance for Credit Loss | 50,474 | 58,405 | 54,712 | 45,250
Financing Receivable, Allowance for Credit Loss, Writeoff | (1,632) | (3,339) |  |
Financing Receivable, Allowance for Credit Loss, Recovery | 291 | 3,214 |  |
Recapture for credit losses | (2,897) | 13,280 |  |
Agriculture [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Financing Receivable, Allowance for Credit Loss | 8,010 | 9,487 | 8,148 | 9,052
Financing Receivable, Allowance for Credit Loss, Writeoff | (23) | 0 |  |
Financing Receivable, Allowance for Credit Loss, Recovery | 125 | 12 |  |
Recapture for credit losses | (240) | 423 |  |
Construction [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Financing Receivable, Allowance for Credit Loss | 5,399 | 6,551 | 5,397 | 7,636
Financing Receivable, Allowance for Credit Loss, Writeoff | 0 | 0 |  |
Financing Receivable, Allowance for Credit Loss, Recovery | 8 | 46 |  |
Recapture for credit losses | (6) | (1,131) |  |
One-to-Four Family Residential [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Financing Receivable, Allowance for Credit Loss | 24,356 | 15,638 | 24,123 | 16,875
Financing Receivable, Allowance for Credit Loss, Writeoff | 0 | 0 |  |
Financing Receivable, Allowance for Credit Loss, Recovery | 294 | 51 |  |
Recapture for credit losses | (61) | (1,288) |  |
Consumer Loan [Member] |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Financing Receivable, Allowance for Credit Loss | 1,403 | 1,163 | $ 1,944 | $ 1,393
Financing Receivable, Allowance for Credit Loss, Writeoff | (246) | (127) |  |
Financing Receivable, Allowance for Credit Loss, Recovery | 340 | 61 |  |
Recapture for credit losses | $ (635) | $ (164) |  |

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- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (c) Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) + Details
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- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
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