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Revenue from Contracts with Customers - Promotional Costs (Details) - Promotional costs - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Capitalized contract costs |  |  |  |  |
Capitalized contract cost, Beginning of period | $ 19.7 | $ 18.6 | $ 20.4 | $ 18.0 |
Deferral | 0.4 | 2.6 | 4.3 | 6.6 |
Amortization | (2.2) | (1.8) | (6.8) | (5.2) |
Capitalized contract cost, End of period | 17.9 | 19.4 | 17.9 | 19.4 |
Capitalized contract costs, Current and non-current portion |  |  |  |  |
Capitalized contract cost, Current | 8.2 |  | 8.2 |  | $ 8.0
Capitalized contract cost, Non-current | 9.7 |  | 9.7 |  | 12.4
Total capitalized contract cost | $ 17.9 | $ 19.4 | $ 17.9 | $ 19.4 | $ 20.4

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- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
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- Definition Amount of increase (decrease) in asset recognized from cost incurred to obtain or fulfill contract with customer from deferral. + References No definition available. + Details
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