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v3.26.1

SEGMENTS - Narrative (Details) $ in Millions | 6 Months Ended
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Jun. 30, 2026 USD ($) d segment | Jun. 30, 2025 USD ($)
Segment Reporting Information [Line Items] |  |
Number of operating segments | segment | 2 |
Number of reportable segments | segment | 1 |
Agreements with FI partners, contract termination notice period | d | 90 |
Minimum |  |
Segment Reporting Information [Line Items] |  |
Agreements with FI partners, term | 3 years |
Maximum |  |
Segment Reporting Information [Line Items] |  |
Agreements with FI partners, term | 7 years |
Marketers | Revenue Benchmark | Top Five Marketers |  |
Segment Reporting Information [Line Items] |  |
Concentration risk | 28.00% | 19.00%
Marketers | Accounts Receivable | Top Five Marketers |  |
Segment Reporting Information [Line Items] |  |
Concentration risk | 28.00% | 27.00%
Supplier Concentration Risk | Financial Institution Partner | Three Largest FI Partners |  |
Segment Reporting Information [Line Items] |  |
Concentration risk | 85.00% | 80.00%
Supplier Concentration Risk | Financial Institution Partner | Largest FI Partner One |  |
Segment Reporting Information [Line Items] |  |
Concentration risk | 60.00% |
United States |  |
Segment Reporting Information [Line Items] |  |
Capital expenditures | $ | $ 0.1 | $ 0.4
United Kingdom |  |
Segment Reporting Information [Line Items] |  |
Capital expenditures | $ | $ 0.1 | $ 0.1

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-42 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 20 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-20 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 + Details
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