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Stockholders' Equity and Regulatory Requirements (Details) - Schedule of Compliance with Regulatory Capital Requirements - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets | 2.37% |
Parent Company [Member] |  |
Tier One Leverage Capital | $ 694,895 | $ 563,464
Tier One Leverage Capital to Average Assets | 9.51% | 9.54%
Tier One Leverage Capital Required for Capital Adequacy | $ 292,349 | $ 236,259
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 | $ 689,740 | $ 558,309
CET One Risk Based Capital to Risk Weighted Assets | 10.79% | 9.95%
CET One Risk Based Capital Required for Capital Adequacy | $ 287,746 | $ 252,439
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 | $ 694,895 | $ 563,464
Tier One Risk Based Capital to Risk Weighted Assets | 10.87% | 10.04%
Tier One Risk Based Capital Required for Capital Adequacy | $ 383,661 | $ 336,586
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 | $ 964,121 | $ 726,757
Capital to Risk Weighted Assets | 15.08% | 12.96%
Capital Required for Capital Adequacy | $ 511,548 | $ 448,781
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 | $ 776,430 | $ 637,824
Tier One Leverage Capital to Average Assets | 10.64% | 10.81%
Tier One Leverage Capital Required for Capital Adequacy | $ 291,958 | $ 236,188
Tier One Leverage Capital Required for Capital Adequacy to Average Assets | 4.00% | 4.00%
Tier One Leverage Capital Required to be Well Capitalized | $ 364,947 | $ 295,235
Tier One Leverage Capital Required to be Well Capitalized to Average Assets | 5.00% | 5.00%
CET One Risk Based Capital | $ 776,430 | $ 637,824
CET One Risk Based Capital to Risk Weighted Assets | 12.24% | 11.37%
CET One Risk Based Capital Required for Capital Adequacy | $ 285,473 | $ 252,432
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 | $ 412,349 | $ 364,625
CET One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets | 6.50% | 6.50%
Tier One Risk Based Capital | $ 776,430 | $ 637,824
Tier One Risk Based Capital to Risk Weighted Assets | 12.24% | 11.37%
Tier One Risk Based Capital Required for Capital Adequacy | $ 380,630 | $ 336,577
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 | $ 507,507 | $ 448,769
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets | 8.00% | 8.00%
Capital | $ 887,906 | $ 708,367
Capital to Risk Weighted Assets | 14.00% | 12.63%
Capital Required for Capital Adequacy | $ 507,507 | $ 448,769
Capital Required for Capital Adequacy to Risk Weighted Assets | 8.00% | 8.00%
Capital Required to be Well Capitalized | $ 634,384 | $ 560,961
Capital Required to be Well Capitalized to Risk Weighted Assets | 10.00% | 10.00%

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