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v3.19.3.a.u2

Long-Term Debt - Senior Secured Credit Facilities (Details) - USD ($) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Apr. 06, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Jul. 29, 2019
Debt Instrument [Line Items] |  |  |  |  |
Proceeds from Issuance of Long-term Debt |  | $ 356.3 | $ 509.6 | $ 2,862.7 |
Multi-Currency Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 932.0 |  |  |  | $ 925.0
Multi-Currency Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  | 898.8 |  |  |
Letters of Credit Outstanding, Amount |  | 26.2 |  |  |
Secured Debt [Member] | Term Loan A [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt |  |  | 83.8 |  |
Secured Debt [Member] | Term Loan B [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt |  | 1,188.8 | $ 1,511.2 |  |
Write off of Deferred Debt Issuance Cost |  | 1.0 |  |  |
Debt Instrument, Repurchase Amount |  | 59.8 |  |  |
Interest Paid, Including Capitalized Interest, Operating and Investing Activities |  | 0.4 |  |  |
Secured Debt [Member] | Term Loan A Due 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt |  | 340.0 |  |  | $ 340.0
Secured Debt [Member] | Term Loan A & Term Loan B [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Write off of Deferred Debt Issuance Cost |  | $ 5.1 |  |  |
Metaldyne Performance Group, Inc. [Member] | Term Loan A [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Proceeds from Issuance of Long-term Debt | 100.0 |  |  |  |
Metaldyne Performance Group, Inc. [Member] | Term Loan B [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Proceeds from Issuance of Long-term Debt | 1,550.0 |  |  |  |
Metaldyne Performance Group, Inc. [Member] | Multi-Currency Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 932.0 |  |  |  |

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