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Stockholders' Equity and Regulatory Requirements (Details) - Schedule of Compliance with Regulatory Capital Requirements - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets | 3.64% |
Parent Company [Member] |  |
Tier One Leverage Capital | $ 909,577 | $ 694,895
Tier One Leverage Capital to Average Assets | 11.65% | 9.51%
Tier One Leverage Capital Required for Capital Adequacy | $ 312,194 | $ 292,349
Tier One Leverage Capital Required for Capital Adequacy to Average Assets | 4.00% | 4.00%
Tier One Leverage Capital Required to be Well Capitalized |  |
Tier One Leverage Capital Required to be Well Capitalized to Average Assets |  |
CET One Risk Based Capital | $ 793,495 | $ 689,740
CET One Risk Based Capital to Risk Weighted Assets | 10.64% | 10.79%
CET One Risk Based Capital Required for Capital Adequacy | $ 335,648 | $ 287,746
CET One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets | 4.50% | 4.50%
CET One Risk Based Capital Required to be Well Capitalized |  |
CET One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets |  |
Tier One Risk Based Capital | $ 909,577 | $ 694,895
Tier One Risk Based Capital to Risk Weighted Assets | 12.19% | 10.87%
Tier One Risk Based Capital Required for Capital Adequacy | $ 447,531 | $ 383,661
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets | 6.00% | 6.00%
Tier One Risk Based Capital Required to be Well Capitalized |  |
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets |  |
Capital | $ 1,138,350 | $ 964,121
Capital to Risk Weighted Assets | 15.26% | 15.08%
Capital Required for Capital Adequacy | $ 596,708 | $ 511,548
Capital Required for Capital Adequacy to Risk Weighted Assets | 8.00% | 8.00%
Capital Required to be Well Capitalized |  |
Capital Required to be Well Capitalized to Risk Weighted Assets |  |
Union Center National Bank [Member] |  |
Tier One Leverage Capital | $ 891,730 | $ 776,430
Tier One Leverage Capital to Average Assets | 11.43% | 10.64%
Tier One Leverage Capital Required for Capital Adequacy | $ 312,166 | $ 291,958
Tier One Leverage Capital Required for Capital Adequacy to Average Assets | 4.00% | 4.00%
Tier One Leverage Capital Required to be Well Capitalized | $ 390,207 | $ 364,947
Tier One Leverage Capital Required to be Well Capitalized to Average Assets | 5.00% | 5.00%
CET One Risk Based Capital | $ 891,730 | $ 776,430
CET One Risk Based Capital to Risk Weighted Assets | 11.96% | 12.24%
CET One Risk Based Capital Required for Capital Adequacy | $ 335,641 | $ 285,473
CET One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets | 4.50% | 4.50%
CET One Risk Based Capital Required to be Well Capitalized | $ 484,815 | $ 412,349
CET One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets | 6.50% | 6.50%
Tier One Risk Based Capital | $ 891,730 | $ 776,430
Tier One Risk Based Capital to Risk Weighted Assets | 11.96% | 12.24%
Tier One Risk Based Capital Required for Capital Adequacy | $ 447,522 | $ 380,630
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets | 6.00% | 6.00%
Tier One Risk Based Capital Required to be Well Capitalized | $ 596,696 | $ 507,507
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets | 8.00% | 8.00%
Capital | $ 1,002,753 | $ 887,906
Capital to Risk Weighted Assets | 13.44% | 14.00%
Capital Required for Capital Adequacy | $ 596,696 | $ 507,507
Capital Required for Capital Adequacy to Risk Weighted Assets | 8.00% | 8.00%
Capital Required to be Well Capitalized | $ 745,869 | $ 634,384
Capital Required to be Well Capitalized to Risk Weighted Assets | 10.00% | 10.00%

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