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Revenue and Contracts with Customers (Contract with Customer Asset and Liability) (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Provision for Loss on Contract Change | $ (16.7) |
Deferred revenue | 242.5 | $ 258.4
Deferred revenue – change | (15.9) |
Contract With Customer, Advances, Liability, Current | 30.2 | 14.8
Advances from customers, current | 15.4 |
Deferred Revenue, Noncurrent | 32.8 | 46.2
Advances from customers, noncurrent - change | (13.4) |
Government [Member] |  |
Provision for Loss on Contracts | $ 3.3 | $ 20.0

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- Definition Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(26)(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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