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Segments - Summarizes Gross Revenue by Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Segment Reporting [Abstract] |  |  |  |
Payments-based revenue | $ 121.2 | $ 159.5 | $ 297.6 | $ 293.5
Subscription and other revenues | 20.6 | 21.0 | 43.6 | 42.0
Total gross revenue | 141.8 | 180.5 | 341.2 | 335.5
Less: network fees | 74.4 | 105.2 | 194.7 | 193.9
Less: Other costs of sales | 35.1 | 31.7 | 69.7 | 59.4
Gross profit | $ 32.3 | $ 43.6 | $ 76.8 | $ 82.2

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