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Revenue and Contracts with Customers (Contract with Customer Asset and Liability) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Deferred costs associated with deferred revenue | $ 145.4 | $ 145.4 |  | $ 144.1
Provision for Loss on Contracts | 8.9 | 8.9 |  |
Provision for Loss on Contract Change |  | (1.1) |  |
Provision for loss on contracts, noncurrent | 0.7 | 0.7 |  |
Provision for Loss on Contract Noncurrent Change |  | (7.6) |  |
Loss on contracts |  |  | $ 0.0 |
Deferred revenue | 248.2 | 248.2 |  | 243.0
Deferred revenue – change |  | 5.2 |  |
Advances from customers, current | 1.5 | 1.5 |  | 23.3
Customer advances – change |  | (21.8) |  |
Advances from customer, noncurrent | 44.9 | 44.9 |  | 29.4
Advances from customers, noncurrent - change |  | 15.5 |  |
Deferred revenue, additions |  | 5.2 |  |
Deferred revenue, revenue recognized |  | (5.2) |  |
Provision for Loss on Contracts Total | 9.6 | 9.6 |  |
Provision for Loss on Contracts Utilized | 3.4 | 8.7 |  |
Government [Member] |  |  |  |
Provision for Loss on Contracts | 8.9 | 8.9 |  | 10.0
Provision for loss on contracts, noncurrent | $ 0.7 | $ 0.7 |  | $ 8.3

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