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Supplementary Regulatory Capital Disclosure (Tables) | 9 Months Ended
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Sep. 30, 2021
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 thousands) | Actual Amount |  | Ratio |  | Minimum for Capital Adequacy Purposes Amount |  | Ratio |  | Minimum to Be Well Capitalized Under Prompt Corrective Action Provisions Amount |  | Ratio
September 30, 2021 |  |  |  |  |  |  |  |  |  |  |
Total Capital to risk-weighted assets | $ | 358,846 |  |  | 12.08 | % |  | $ | 237,589 |  |  | 8.00 | % |  | $ | 296,987 |  |  | 10.00 | %
Tier 1 Capital to average assets | $ | 326,558 |  |  | 10.08 | % |  | $ | 129,553 |  |  | 4.00 | % |  | $ | 161,941 |  |  | 5.00 | %
Common equity to risk-weighted assets | $ | 326,558 |  |  | 11.00 | % |  | $ | 133,644 |  |  | 4.50 | % |  | $ | 193,041 |  |  | 6.50 | %
Tier 1 Capital to risk-weighted assets | $ | 326,558 |  |  | 11.00 | % |  | $ | 178,192 |  |  | 6.00 | % |  | $ | 237,589 |  |  | 8.00 | %
December 31, 2020 |  |  |  |  |  |  |  |  |  |  |
Total Capital to risk-weighted assets | $ | 299,136 |  |  | 15.04 | % |  | $ | 159,148 |  |  | 8.00 | % |  | $ | 198,935 |  |  | 10.00 | %
Tier 1 Capital to average assets | $ | 287,570 |  |  | 12.71 | % |  | $ | 90,514 |  |  | 4.00 | % |  | $ | 113,143 |  |  | 5.00 | %
Common equity to risk-weighted assets | $ | 287,570 |  |  | 14.46 | % |  | $ | 89,521 |  |  | 4.50 | % |  | $ | 129,308 |  |  | 6.50 | %
Tier 1 Capital to risk-weighted assets | $ | 287,570 |  |  | 14.46 | % |  | $ | 119,361 |  |  | 6.00 | % |  | $ | 159,148 |  |  | 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 -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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