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Acquisitions - Narrative (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Jan. 31, 2020 | Aug. 31, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  | $ 0 | $ 169,200,000
Acquisition-related and integration charges |  |  | $ 0 | $ 2,700,000 | $ 0 | $ 10,300,000
I&S (acquisition) |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to Acquire Businesses, Gross | $ 172,300,000 |  |  |  |  |
Debt instrument, face amount | 100,000,000 |  |  |  |  |
Proceeds from Lines of Credit | $ 67,000,000 |  |  |  |  |
Working Capital Adjustment |  | $ 3,100,000 |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  | $ 169,200,000 |  |  |  |
Trademarks and Trade Names | I&S (acquisition) |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 13 years |  |  |  |  |
Customer Relationships | I&S (acquisition) |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 14 years |  |  |  |  |

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