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Revenues from Contracts with Customers - Contract Costs (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Contract costs |  |  |  |  |
Contract cost asset | $ 206.7 |  | $ 206.7 |  | $ 219.2
Practical expedient, incremental costs of obtaining a contract |  |  | true |  |
Amortization expense of contract cost asset | $ 10.4 | $ 9.0 | $ 19.9 | $ 17.3 |
Impairment loss for contract cost asset |  |  | $ 0.0 | $ 0.0 |

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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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