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Long-Term Debt and Commitments, Long-Term Debt (Details) $ in Millions |  |  | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 30, 2018 USD ($) | Feb. 14, 2017 USD ($) | Sep. 27, 2020 Loan | Dec. 31, 2020 USD ($) Loan Offering qtr | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Jun. 30, 2020 USD ($) | Jun. 23, 2015 USD ($) | May 09, 2014 USD ($)
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | $ 934.2 | $ 826.4 |  |  |  |
Repayments of long-term debt |  |  |  | 290.1 | 88.2 | $ 66.3 |  |  |
Short-term borrowings |  |  |  | 0.0 | $ 101.2 |  |  |  |
Weighted average interest rate on short-term borrowings |  |  |  |  | 3.90% |  |  |  |
Maturities of Long-term Debt [Abstract] |  |  |  |  |  |  |  |  |
2021 |  |  |  | 4.5 |  |  |  |  |
2022 |  |  |  | 0.2 |  |  |  |  |
2023 |  |  |  | 0.0 |  |  |  |  |
2024 |  |  |  | 548.0 |  |  |  |  |
2025 |  |  |  | 0.0 |  |  |  |  |
Thereafter |  |  |  | 400.0 |  |  |  |  |
Interest Costs [Abstract] |  |  |  |  |  |  |  |  |
Interest costs |  |  |  | 40.7 | $ 46.0 | 48.6 |  |  |
Capitalized interest cost |  |  |  | 0.6 | 0.6 | $ 0.5 |  |  |
Sivomatic [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Long-term debt assumed as part of acquisition | $ 10.7 |  |  |  |  |  |  |  |
Credit Agreement [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Letters of credit excluded from financial covenant |  |  |  | $ 25.0 |  |  |  |  |
Number of quarters to maintain net leverage ratio under financial covenant | qtr |  |  |  | 4 |  |  |  |  |
Credit Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Net leverage ratio |  |  |  | 3.50 |  |  |  |  |
Term Facility [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  |  |  | $ 1,560.0
Long-term debt |  |  |  |  |  |  |  | $ 1,378.0 |
Repayments of long-term debt |  |  |  | $ 288.0 |  |  |  |  |
Term Loan Facility - Variable Tranche [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Long-term debt |  | $ 788.0 |  | $ 535.6 | 642.0 |  |  | 1,078.0 |
Decrease in basis spread on variable rate |  | (0.75%) |  |  |  |  |  |  |
Maturity date |  |  |  | Feb. 14, 2024 |  |  |  |  |
Required annual amortization |  |  |  | 1.00% |  |  |  |  |
Term Loan Facility - Variable Tranche [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Interest rate |  |  |  | 0.75% |  |  |  |  |
Term Loan Facility - Variable Tranche [Member] | LIBOR [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  | 2.25% |  |  |  |  |
Term Loan Facility - Fixed Tranche [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | $ 0.0 | 177.8 |  |  | $ 300.0 |
Maturity date |  |  |  | May 09, 2021 |  |  |  |  |
Revolving Facility [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  | $ 300.0 |  |  |  |  | $ 200.0
Long-term debt |  |  |  | $ 0.0 |  |  |  |  |
Maturity date |  |  |  | Apr. 18, 2023 |  |  |  |  |
Letters of credit outstanding |  |  |  | $ 9.5 |  |  |  |  |
Revolving Facility [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Decrease in basis spread if net leverage ratio is less than certain thresholds |  |  |  | (0.25%) |  |  |  |  |
Revolving Facility [Member] | LIBOR [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  | 1.625% |  |  |  |  |
Senior Notes due 2028 [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Face amount |  |  |  |  |  |  | $ 400.0 |  |
Long-term debt |  |  |  | $ 393.9 | 0.0 |  |  |  |
Maturity date |  |  |  | Jun. 30, 2028 |  |  |  |  |
Interest rate |  |  |  | 5.00% |  |  |  |  |
Guarantee amount |  |  |  | $ 50.0 |  |  |  |  |
Number of equity offerings where funds can be used to redeem percentage of aggregate principal amount | Offering |  |  |  | 1 |  |  |  |  |
Senior Notes due 2028 [Member] | Redemption of Notes for Cash Prior to July 1, 2023 [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 100.00% |  |  |  |  |
Senior Notes due 2028 [Member] | Redemption of Notes with Funds from One or More Equity Offerings Prior to July 1, 2023 [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 105.00% |  |  |  |  |
Percentage of aggregate principal amount that can be redeemed |  |  |  | 40.00% |  |  |  |  |
Senior Notes due 2028 [Member] | Redemption of Notes if Company Experiences Change of Control [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 101.00% |  |  |  |  |
Netherlands Term Loans [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  | $ 1.5 |  |  |  |  |
Number of term loans | Loan |  |  |  | 2 |  |  |  |  |
Number of term loans that matured | Loan |  |  | 1 |  |  |  |  |  |
Netherlands Term Loans [Member] | Euribor [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  | 2.00% |  |  |  |  |  |
Japan Loan Facilities [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | $ 4.1 | $ 4.5 |  |  |  |
Repayments of long-term debt |  |  |  | 0.6 |  |  |  |  |
Uncommitted Short-Term Bank Credit Lines [Member] |  |  |  |  |  |  |  |  |
Long-Term Debt and Commitments [Abstract] |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  | 25.6 |  |  |  |  |
Short-term borrowings |  |  |  | $ 0.0 |  |  |  |  |

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