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Supplementary Regulatory Capital Disclosure (Tables) | 6 Months Ended
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Jun. 30, 2024
Debt Disclosure [Abstract] |
Schedule of Compliance With Regulatory Capital Requirements Under Banking Regulations | The following table presents WEX Bank’s actual and regulatory minimum capital amounts and ratios:
(in millions) | Actual Amount |  | Ratio |  | Minimum for Capital Adequacy Purposes Amount |  | Ratio |  | Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount |  | Ratio
June 30, 2024 |  |  |  |  |  |  |  |  |  |  |
Total Capital to risk-weighted assets | $ | 719.2 |  |  | 14.15 | % |  | $ | 406.7 |  |  | 8.00 | % |  | $ | 508.4 |  |  | 10.00 | %
Tier 1 Capital to average assets | $ | 665.9 |  |  | 9.63 | % |  | $ | 276.5 |  |  | 4.00 | % |  | $ | 345.7 |  |  | 5.00 | %
Common equity to risk-weighted assets | $ | 665.9 |  |  | 13.10 | % |  | $ | 228.8 |  |  | 4.50 | % |  | $ | 330.4 |  |  | 6.50 | %
Tier 1 Capital to risk-weighted assets | $ | 665.9 |  |  | 13.10 | % |  | $ | 305.0 |  |  | 6.00 | % |  | $ | 406.7 |  |  | 8.00 | %
December 31, 2023 |  |  |  |  |  |  |  |  |  |  |
Total Capital to risk-weighted assets | $ | 727.2 |  |  | 16.27 | % |  | $ | 357.5 |  |  | 8.00 | % |  | $ | 446.9 |  |  | 10.00 | %
Tier 1 Capital to average assets | $ | 675.2 |  |  | 10.21 | % |  | $ | 264.4 |  |  | 4.00 | % |  | $ | 330.5 |  |  | 5.00 | %
Common equity to risk-weighted assets | $ | 675.2 |  |  | 15.11 | % |  | $ | 201.1 |  |  | 4.50 | % |  | $ | 290.5 |  |  | 6.50 | %
Tier 1 Capital to risk-weighted assets | $ | 675.2 |  |  | 15.11 | % |  | $ | 268.1 |  |  | 6.00 | % |  | $ | 357.5 |  |  | 8.00 | %

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B + Details
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