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Regulatory Capital (Details) $ in Thousands | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total capital (to risk-weighted assets), actual, amount | $ 791,701 | $ 776,390
Total capital (to risk-weighted assets), actual, ratio | 0.1441 | 0.1437
Total capital (to risk-weighted assets), for capital adequacy purposes, amount | $ 439,335 | $ 432,172
Total capital (to risk-weighted assets), For capital adequacy purposes, ratio | 0.0800 | 0.0800
Total capital (to risk-weighted assets), required for capital1 adequacy purposes with capital buffer, amount | $ 576,627 | $ 567,226
Total capital (to risk-weighted assets), required for capital1 adequacy purposes with capital buffer, ratio | 10.50% | 10.50%
Tier 1 capital (to average assets), actual, amount | $ 742,175 | $ 729,835
Tier 1 capital (to average assets), actual, ratio | 0.1351 | 0.1351
Tier 1 capital (to average assets), for capital adequacy purposes, amount | $ 329,501 | $ 324,129
Tier 1 capital (to average assets), for capital adequacy purpose, ratio | 0.0600 | 0.0600
Tier 1 capital (to average assets), required for capital1 adequacy purposes with capital buffer, amount | $ 466,794 | $ 459,183
Tier 1 capital (to average assets), required for capital1 adequacy purposes with capital buffer, ratio | 8.50% | 8.50%
Common equity tier 1 capital, actual amount | $ 621,647 | $ 609,630
Common equity tier 1 capital, actual ratio | 0.1132 | 0.1128
Common equity tier 1 capital, for capital adequacy purposes, amount | $ 247,126 | $ 243,097
Common equity tier 1 capital, for capital adequacy purpose, ratio | 4.50% | 4.50%
Common equity tier 1 capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, amount | $ 384,418 | $ 378,151
Common equity tier 1 capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, ratio | 7.00% | 7.00%
Tier 1 capital (to average assets), actual, amount | $ 742,175 | $ 729,835
Tier 1 capital (to average assets), actual, ratio | 0.1006 | 0.1003
Tier 1 capital (to average assets), for capital adequacy purposes, amount | $ 295,057 | $ 291,122
Tier 1 capital (to average assets), for capital adequacy purpose, ratio | 0.0400 | 0.0400
Tier 1 capital (to average assets), required for capital1 adequacy purposes with capital buffer, amount | $ 295,057 | $ 291,122
Tier 1 capital (to average assets), required for capital1 adequacy purposes with capital buffer, ratio | 4.00% | 4.00%
Bank |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Total capital (to risk-weighted assets), actual, amount | $ 736,730 | $ 726,339
Total capital (to risk-weighted assets), actual, ratio | 0.1356 | 0.1359
Total capital (to risk-weighted assets), for capital adequacy purposes, amount | $ 434,541 | $ 427,456
Total capital (to risk-weighted assets), For capital adequacy purposes, ratio | 0.0800 | 0.0800
Total capital (to risk-weighted assets), required for capital1 adequacy purposes with capital buffer, amount | $ 570,335 | $ 561,036
Total capital (to risk-weighted assets), required for capital1 adequacy purposes with capital buffer, ratio | 10.50% | 10.50%
Total capital (to risk-weighted assets), for well capitalized purpose, amount | $ 543,176 | $ 534,320
Total capital (to risk-weighted assets), for well capitalized purpose, ratio | 0.1000 | 0.1000
Tier 1 capital (to average assets), actual, amount | $ 687,204 | $ 679,784
Tier 1 capital (to average assets), actual, ratio | 0.1265 | 0.1272
Tier 1 capital (to average assets), for capital adequacy purposes, amount | $ 325,906 | $ 320,592
Tier 1 capital (to average assets), for capital adequacy purpose, ratio | 0.0600 | 0.0600
Tier 1 capital (to average assets), required for capital1 adequacy purposes with capital buffer, amount | $ 461,700 | $ 454,172
Tier 1 capital (to average assets), required for capital1 adequacy purposes with capital buffer, ratio | 8.50% | 8.50%
Tier 1 capital (to average assets), for well capitalized purpose, amount | $ 434,541 | $ 427,456
Tier 1 capital (to average assets), for well capitalized purposes, ratio | 0.0800 | 0.0800
Common equity tier 1 capital, actual amount | $ 687,241 | $ 679,784
Common equity tier 1 capital, actual ratio | 0.1265 | 0.1272
Common equity tier 1 capital, for capital adequacy purposes, amount | $ 244,429 | $ 240,444
Common equity tier 1 capital, for capital adequacy purpose, ratio | 4.50% | 4.50%
Common equity tier 1 capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, amount | $ 380,223 | $ 374,024
Common equity tier 1 capital (to risk-weighted assets), required for capital adequacy purposes with capital buffer, ratio | 7.00% | 7.00%
Common equity tier 1 capital, for well capitalized purpose, amount | $ 353,065 | $ 347,308
Common equity tier 1 capital, for well capitalized purposes, ratio | 6.50% | 6.50%
Tier 1 capital (to average assets), actual, amount | $ 687,204 | $ 679,784
Tier 1 capital (to average assets), actual, ratio | 0.0886 | 0.0889
Tier 1 capital (to average assets), for capital adequacy purposes, amount | $ 310,125 | $ 305,996
Tier 1 capital (to average assets), for capital adequacy purpose, ratio | 0.0400 | 0.0400
Tier 1 capital (to average assets), required for capital1 adequacy purposes with capital buffer, amount | $ 310,125 | $ 305,999
Tier 1 capital (to average assets), required for capital1 adequacy purposes with capital buffer, ratio | 4.00% | 4.00%
Tier 1 capital (to average assets), for well capitalized purpose, amount | $ 387,657 | $ 382,495
Tier 1 capital (to average assets), for well capitalized purposes, ratio | 0.0500 | 0.0500

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