Revenue, Contract Assets and Liabilities and Other Contract Matters - Summary of Contract with Customer, Asset and Liability (Parenthetical) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
Dec. 31, 2020 |
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| Revenue From Contract With Customer [Abstract] | |||||
| Contract with customer, liability, revenue recognized | $ 1.6 | $ 4.6 | $ 3.2 | $ 11.4 | |
| Contract with customer, liability, accrued contract losses, current | $ 4.4 | $ 4.4 | $ 5.4 | ||
| X | ||||||||||
- Definition Contract with customer liability accrued contract losses current. No definition available.
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| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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