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