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Allowance for Credit Losses and Unfunded Commitments and Letters of Credit (Tables)
 12 Months Ended
Dec. 31, 2021
Allowance For Credit Losses And Unfunded Loan Commitments And Letters Of Credit  
Allowance for Credit Losses on Financing Receivables
The following tables show a detailed analysis of the ACL for the years ended December 31, 2021, 2020 and 2019:

Beginning BalanceInitial ACL recorded for PCD loans acquired during the periodCharge-offsRecoveriesProvision
(Recapture)		Ending Balance
Year Ended December 31, 2021(in thousands)
Commercial loans:
Commercial real estate
$68,934 $2,225 $(1,044)$633 $(9,494)$61,254 
Commercial business
45,250 30 (6,364)4,862 10,934 54,712 
Agriculture
9,052 38 (322)355 (975)8,148 
Construction
7,636 35 — 593 (2,867)5,397 
Consumer loans:
One-to-four family residential real estate
16,875 286 (170)907 6,225 24,123 
Other consumer
1,393 2 (1,163)735 977 1,944 
Total$149,140 $2,616 $(9,063)$8,085 $4,800 $155,578 

Beginning BalanceImpact of Adopting ASC 326Charge-offsRecoveriesProvision
(Recapture)		Ending Balance
Year Ended December 31, 2020(in thousands)
Commercial loans:
Commercial real estate
$20,340 $7,533 $(1,419)$131 $42,349 $68,934 
Commercial business
30,292 762 (12,396)3,438 23,154 45,250 
Agriculture
15,835 (9,325)(6,427)172 8,797 9,052 
Construction
8,571 (1,750)— 709 106 7,636 
Consumer loans:
One-to-four family residential real estate
7,435 4,237 (84)2,083 3,204 16,875 
Other consumer
883 778 (766)399 99 1,393 
Unallocated612 (603)— — (9)— 
Total$83,968 $1,632 $(21,092)$6,932 $77,700 $149,140 

 Beginning BalanceCharge-offsRecoveriesProvision
(Recapture)		Ending Balance
Year Ended December 31, 2019(in thousands)
Commercial loans:
Commercial real estate
$14,864 $(2,160)$3,377 $4,259 $20,340 
Commercial business
34,658 (11,290)3,066 3,858 30,292 
Agriculture
9,589 (245)299 6,192 15,835 
Construction
14,395 (242)3,641 (9,223)8,571 
Consumer loans:
One-to-four family residential real estate
8,024 (1,196)1,773 (1,166)7,435 
Other consumer
786 (82)165 14 883 
Unallocated1,053 — — (441)612 
Total$83,369 $(15,215)$12,321 $3,493 $83,968 
Changes in the Allowance for Unfunded Commitments and Letters of Credit
Changes in the allowance for unfunded commitments and letters of credit, a component of “Other liabilities” in the Consolidated Balance Sheets, are summarized as follows:
Years Ended December 31,
202120202019
(in thousands)
Beginning balance$8,300 $3,430 $4,330 
Impact of Adopting ASC 326— 1,570 — 
Net changes in the allowance for unfunded commitments and letters of credit
200 3,300 (900)
Ending balance$8,500 $8,300 $3,430 
Financing Receivable Credit Quality Indicators
The following is an analysis of the credit quality of our loan portfolio as of December 31, 2021 and 2020:
Revolving Loans Amortized Cost BasisRevolving Loans Converted to Term Loans Amortized Cost Basis
Term Loans
Amortized Cost Basis by Origination Year
20212020201920182017PriorTotal (1)
December 31, 2021(in thousands)
Commercial loans:
Commercial real estate
Pass$1,068,493 $760,545 $650,593 $492,348 $515,233 $1,180,115 $74,754 $3,644 $4,745,725 
Special mention2,252 — 19,016 6,196 163 27,270 — 2,199 57,096 
Substandard4,119 5,897 45,769 9,112 29,917 82,599 1,029 — 178,442 
Total commercial real estate$1,074,864 $766,442 $715,378 $507,656 $545,313 $1,289,984 $75,783 $5,843 $4,981,263 
Commercial business
Pass$891,957 $426,004 $280,823 $217,605 $144,363 $232,356 $1,028,616 $35,411 $3,257,135 
Special mention621 135 6,097 747 105 51 34,256 236 42,248 
Substandard4,329 4,610 18,393 28,066 20,568 27,462 18,796 1,661 123,885 
Total commercial business$896,907 $430,749 $305,313 $246,418 $165,036 $259,869 $1,081,668 $37,308 $3,423,268 
Agriculture
Pass$147,561 $87,964 $74,658 $29,739 $46,058 $79,693 $266,573 $5,448 $737,694 
Special mention162 — 445 — — — 565 — 1,172 
Substandard— 7,717 9,148 1,616 5,532 1,833 29,125 1,878 56,849 
Total agriculture$147,723 $95,681 $84,251 $31,355 $51,590 $81,526 $296,263 $7,326 $795,715 
Construction
Pass$228,661 $53,880 $35,795 $3,183 $3,285 $2,189 $55,765 $— $382,758 
Substandard— — 1,748 — — 249 — — 1,997 
Total construction$228,661 $53,880 $37,543 $3,183 $3,285 $2,438 $55,765 $— $384,755 
Consumer loans:
One-to-four family residential real estate 
Pass$390,153 $140,799 $56,520 $51,549 $32,447 $111,307 $222,747 $1,347 $1,006,869 
Substandard85 470 183 562 234 4,736 485 284 7,039 
Total one-to-four family residential real estate$390,238 $141,269 $56,703 $52,111 $32,681 $116,043 $223,232 $1,631 $1,013,908 
Other consumer
Pass$7,045 $2,711 $1,950 $13,489 $560 $1,277 $15,853 $97 $42,982 
Substandard— — — — 1 13 23 9 46 
Total consumer$7,045 $2,711 $1,950 $13,489 $561 $1,290 $15,876 $106 $43,028 
Total$2,745,438 $1,490,732 $1,201,138 $854,212 $798,466 $1,751,150 $1,748,587 $52,214 $10,641,937 
Less:
Allowance for credit losses155,578 
Loans, net$10,486,359 
_________
(1) Loans that are on short-term deferments are treated as Pass loans and will not be reported as past due provided that they are performing in accordance with the modified terms.
Revolving Loans Amortized Cost BasisRevolving Loans Converted to Term Loans Amortized Cost Basis
Term Loans
Amortized Cost Basis by Origination Year
20202019201820172016PriorTotal
December 31, 2020(in thousands)
Commercial loans:
Commercial real estate
Pass$674,444 $645,328 $478,881 $502,112 $408,972 $946,980 $52,049 $11,332 $3,720,098 
Special mention3,348 39,374 21,285 30,232 46,197 50,115 5 2,139 192,695 
Substandard2,916 24,860 13,571 15,652 43,735 41,138 3,389 4,259 149,520 
Total commercial real estate$680,708 $709,562 $513,737 $547,996 $498,904 $1,038,233 $55,443 $17,730 $4,062,313 
Commercial business
Pass$1,087,400 $366,435 $324,360 $199,010 $218,313 $214,677 $1,000,725 $11,540 $3,422,460 
Special mention3,002 26,361 8,471 24,582 7,004 10,650 22,426 — 102,496 
Substandard3,625 7,376 11,061 5,905 6,396 3,743 32,134 2,772 73,012 
Total commercial business$1,094,027 $400,172 $343,892 $229,497 $231,713 $229,070 $1,055,285 $14,312 $3,597,968 
Agriculture
Pass$142,163 $90,612 $44,434 $58,366 $58,893 $59,396 $244,135 $9,299 $707,298 
Special mention— 90 285 33 — — 85 13 506 
Substandard5,193 12,480 5,868 4,258 284 3,502 38,780 1,458 71,823 
Total agriculture$147,356 $103,182 $50,587 $62,657 $59,177 $62,898 $283,000 $10,770 $779,627 
Construction
Pass$134,693 $66,974 $10,066 $3,498 $763 $1,805 $29,323 $3,753 $250,875 
Substandard— 17,732 — — — 56 — — 17,788 
Total construction$134,693 $84,706 $10,066 $3,498 $763 $1,861 $29,323 $3,753 $268,663 
Consumer loans:
One-to-four family residential real estate
Pass$161,021 $77,756 $62,696 $29,737 $20,889 $78,098 $243,325 $3,655 $677,177 
Special mention— — 332 — — 195 — — 527 
Substandard— 849 227 1,166 344 1,968 1,005 307 5,866 
Total one-to-four family residential real estate$161,021 $78,605 $63,255 $30,903 $21,233 $80,261 $244,330 $3,962 $683,570 
Other consumer
Pass$5,548 $3,109 $3,886 $989 $244 $1,060 $19,911 $474 $35,221 
Substandard30 — — 5 — 170 53 40 298 
Total consumer$5,578 $3,109 $3,886 $994 $244 $1,230 $19,964 $514 $35,519 
Total$2,223,383 $1,379,336 $985,423 $875,545 $812,034 $1,413,553 $1,687,345 $51,041 $9,427,660 
Less:
Allowance for credit losses149,140 
Loans, net$9,278,520