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Loans and Allowance for Credit Losses - Financing Receivable, Allowance for Credit Loss (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | $ 60,754 | $ 67,338 |
Provision (credit) charged to expense | 3,000 | (6,700) | $ 15,871
Losses charged off | (2,169) | (2,621) |
Recoveries | 1,895 | 2,737 |
Balance at end of period | 63,480 | 60,754 | 67,338
Loans Receivable |  |  |
Loans and Allowance for Credit Losses |  |  |
Individually evaluated for impairment |  |  | 713
Collectively evaluated for impairment |  |  | 54,350
Loans acquired and accounted for under ASC 310-30 |  |  | 680
Individually evaluated for impairment |  |  | 9,048
Collectively evaluated for impairment |  |  | 5,117,838
Loans acquired and accounted for under ASC 310-30 |  |  | 98,643
Loans Receivable | Allowance For Credit Losses |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 55,743 | 40,294
Provision (credit) charged to expense |  |  | 15,871
Losses charged off |  |  | (3,294)
Recoveries |  |  | 2,872
Balance at end of period |  |  | 55,743
Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 9,629 | 8,690 |
Provision (credit) charged to expense | 3,187 | 939 |
Balance at end of period | 12,816 | 9,629 | 8,690
CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 11,595 |
Balance at end of period |  |  | 11,595
CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 8,690
Before CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 55,743 |
Balance at end of period |  |  | 55,743
Before CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 0
One- To Four-Family Residential |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 9,364 | 9,069 |
Provision (credit) charged to expense | 1,652 |  |
Losses charged off | (40) | (190) |
Recoveries | 195 | 485 |
Balance at end of period | 11,171 | 9,364 | 9,069
Individually evaluated for impairment |  |  | 90
Collectively evaluated for impairment |  |  | 4,382
Loans acquired and accounted for under ASC 310-30 |  |  | 64
Individually evaluated for impairment |  |  | 3,546
Collectively evaluated for impairment |  |  | 655,146
Loans acquired and accounted for under ASC 310-30 |  |  | 57,113
One- To Four-Family Residential | Allowance For Credit Losses |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 4,536 | 4,339
Provision (credit) charged to expense |  |  | 84
Losses charged off |  |  | (70)
Recoveries |  |  | 183
Balance at end of period |  |  | 4,536
One- To Four-Family Residential | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 687 | 917 |
Provision (credit) charged to expense | 49 | (230) |
Balance at end of period | 736 | 687 | 917
One- To Four-Family Residential | CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 4,533 |
Balance at end of period |  |  | 4,533
One- To Four-Family Residential | CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 917
One- To Four-Family Residential | Before CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 4,536 |
Balance at end of period |  |  | 4,536
One- To Four-Family Residential | Before CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 0
Other Residential |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 10,502 | 15,207 |
Provision (credit) charged to expense | 1,498 | (4,797) |
Recoveries | 110 | 92 |
Balance at end of period | 12,110 | 10,502 | 15,207
Collectively evaluated for impairment |  |  | 9,282
Loans acquired and accounted for under ASC 310-30 |  |  | 93
Collectively evaluated for impairment |  |  | 1,021,145
Loans acquired and accounted for under ASC 310-30 |  |  | 6,150
Other Residential | Allowance For Credit Losses |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 9,375 | 5,153
Provision (credit) charged to expense |  |  | 4,042
Recoveries |  |  | 180
Balance at end of period |  |  | 9,375
Other Residential | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 5,703 | 5,227 |
Provision (credit) charged to expense | 2,921 | 476 |
Balance at end of period | 8,624 | 5,703 | 5,227
Other Residential | CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 5,832 |
Balance at end of period |  |  | 5,832
Other Residential | CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 5,227
Other Residential | Before CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 9,375 |
Balance at end of period |  |  | 9,375
Other Residential | Before CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 0
Commercial Real Estate |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 28,604 | 31,176 |
Provision (credit) charged to expense | (1,465) | (2,478) |
Losses charged off | (44) | (142) |
Recoveries | 1 | 48 |
Balance at end of period | 27,096 | 28,604 | 31,176
Individually evaluated for impairment |  |  | 445
Collectively evaluated for impairment |  |  | 32,937
Loans acquired and accounted for under ASC 310-30 |  |  | 325
Individually evaluated for impairment |  |  | 3,438
Collectively evaluated for impairment |  |  | 1,550,239
Loans acquired and accounted for under ASC 310-30 |  |  | 24,613
Commercial Real Estate | Allowance For Credit Losses |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 33,707 | 24,334
Provision (credit) charged to expense |  |  | 9,343
Losses charged off |  |  | (43)
Recoveries |  |  | 73
Balance at end of period |  |  | 33,707
Commercial Real Estate | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 367 | 354 |
Provision (credit) charged to expense | 49 | 13 |
Balance at end of period | 416 | 367 | 354
Commercial Real Estate | CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | (2,531) |
Balance at end of period |  |  | (2,531)
Commercial Real Estate | CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 354
Commercial Real Estate | Before CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 33,707 |
Balance at end of period |  |  | 33,707
Commercial Real Estate | Before CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 0
Commercial Construction |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 2,797 | 2,356 |
Provision (credit) charged to expense | 152 | 575 |
Losses charged off | (84) | (154) |
Recoveries |  | 20 |
Balance at end of period | 2,865 | 2,797 | 2,356
Collectively evaluated for impairment |  |  | 3,378
Loans acquired and accounted for under ASC 310-30 |  |  | 143
Collectively evaluated for impairment |  |  | 1,266,847
Loans acquired and accounted for under ASC 310-30 |  |  | 2,551
Commercial Construction | Allowance For Credit Losses |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 3,521 | 3,076
Provision (credit) charged to expense |  |  | 242
Losses charged off |  |  | (1)
Recoveries |  |  | 204
Balance at end of period |  |  | 3,521
Commercial Construction | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 908 | 910 |
Provision (credit) charged to expense | (106) | (2) |
Balance at end of period | 802 | 908 | 910
Commercial Construction | CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | (1,165) |
Balance at end of period |  |  | (1,165)
Commercial Construction | CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 910
Commercial Construction | Before CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 3,521 |
Balance at end of period |  |  | 3,521
Commercial Construction | Before CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 0
Commercial Business |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 4,142 | 3,889 |
Provision (credit) charged to expense | 1,491 |  |
Losses charged off | (51) | (81) |
Recoveries | 240 | 334 |
Balance at end of period | 5,822 | 4,142 | 3,889
Individually evaluated for impairment |  |  | 14
Collectively evaluated for impairment |  |  | 2,331
Loans acquired and accounted for under ASC 310-30 |  |  | 45
Individually evaluated for impairment |  |  | 167
Collectively evaluated for impairment |  |  | 384,734
Loans acquired and accounted for under ASC 310-30 |  |  | 2,549
Commercial Business | Allowance For Credit Losses |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 2,390 | 1,355
Provision (credit) charged to expense |  |  | 914
Losses charged off |  |  | (28)
Recoveries |  |  | 149
Balance at end of period |  |  | 2,390
Commercial Business | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 1,582 | 935 |
Provision (credit) charged to expense | 152 | 647 |
Balance at end of period | 1,734 | 1,582 | 935
Commercial Business | CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 1,499 |
Balance at end of period |  |  | 1,499
Commercial Business | CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 935
Commercial Business | Before CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 2,390 |
Balance at end of period |  |  | 2,390
Commercial Business | Before CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 0
Consumer |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 5,345 | 5,641 |
Provision (credit) charged to expense | (328) |  |
Losses charged off | (1,950) | (2,054) |
Recoveries | 1,349 | 1,758 |
Balance at end of period | 4,416 | 5,345 | 5,641
Individually evaluated for impairment |  |  | 164
Collectively evaluated for impairment |  |  | 2,040
Loans acquired and accounted for under ASC 310-30 |  |  | 10
Individually evaluated for impairment |  |  | 1,897
Collectively evaluated for impairment |  |  | 239,727
Loans acquired and accounted for under ASC 310-30 |  |  | 5,667
Consumer | Allowance For Credit Losses |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 2,214 | 2,037
Provision (credit) charged to expense |  |  | 1,246
Losses charged off |  |  | (3,152)
Recoveries |  |  | 2,083
Balance at end of period |  |  | 2,214
Consumer | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period | 382 | 347 |
Provision (credit) charged to expense | 122 | 35 |
Balance at end of period | $ 504 | 382 | 347
Consumer | CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | 3,427 |
Balance at end of period |  |  | 3,427
Consumer | CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | 347
Consumer | Before CECL adoption |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  | $ 2,214 |
Balance at end of period |  |  | 2,214
Consumer | Before CECL adoption | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Balance at beginning of period |  |  | $ 0

X
- Definition The carrying amount as of the balance sheet date of loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer, for which it was deemed probable at acquisition that the investor would be unable to collect all contractually required payments, and to which the income recognition total model was not applied. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(4) -URI https://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123409700&loc=d3e13503-111538 + Details
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- Definition Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123409700&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 + Details
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