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Capital Disclosures (Details) - USD ($) | 1 Months Ended | 11 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 15, 2020 | Nov. 30, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Nov. 30, 2018 | Jun. 30, 2018
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings, notional amount |  |  | $ 562,600,000 | $ 523,900,000 |  |
Sub-limit for letters of credit outstanding |  |  | 20,200,000 | 13,300,000 |  |
Available borrowings |  |  | 162,700,000 | 142,500,000 |  |
Factoring of receivables from facility program |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Accounts receivable sold during period |  |  | 119,700,000 | 90,600,000 |  |
Factoring of receivables from supplier financing program |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Accounts receivable sold during period |  |  | 65,300,000 | 50,400,000 |  |
Factoring of receivables from prior facility program. |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Agreement to sell trade receivables, maximum capacity | $ 200,000,000.0 | $ 250,000,000.0 | 300,000,000.0 |  |  |
New credit facility |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Borrowings, notional amount |  |  |  |  |  | $ 800,000,000.0
Amount of accordion feature |  |  | 110,000,000 |  |  |
Revolving Facility Due June 2023 |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Line of credit, maximum borrowing capacity |  |  |  |  |  | $ 450,000,000.0
Sub-limit for letters of credit outstanding |  |  | 21,300,000 | $ 21,200,000 |  |
Available borrowings |  |  | 428,700,000 |  |  |
Revolving Facility Due June 2023 | Bridge Loan |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Line of credit, maximum borrowing capacity |  |  | $ 50,000,000.0 |  |  |
Revolving Facility Due June 2023 | Bridge Loan | Top of range |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Debt instrument term |  |  | 10 days |  |  |
New Term Loans, November |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Amount of accordion feature |  |  |  |  | $ 250,000,000.0 |

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