Fair Value Measurements - Narrative (Details)	3 Months Ended		12 Months Ended
	Dec. 31, 2021 USD ($) strategicInvestment	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Level 1 to level 2 transfers	$ 0		$ 0	$ 0	$ 0
Impairment charge				1,700,000
Payments to acquire equity method investments		$ 16,500,000	35,300,000	0	0
Carrying value of strategic equity investment	$ 16,500,000		16,500,000
Number of strategic investments | strategicInvestment	2
Equity securities where fair value is not readily determinable	$ 18,800,000		18,800,000
Finance lease obligations	102,400,000		102,400,000	103,100,000
Debt securities, held-to-maturity, restricted	76,100,000		76,100,000	73,600,000
Held-to-maturity, allowance for credit loss	500,000		500,000	900,000
Restricted cash	4,700,000		4,700,000	2,400,000
Restricted investments, fair value	80,000,000		80,000,000	81,500,000
Total debt including finance lease obligations	1,280,500,000		1,280,500,000	1,306,500,000
Contingent consideration liability	800,000		$ 800,000	800,000
Earn out period			5 years
2020 Acquisitions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability	7,000,000		$ 7,000,000
Liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Revenue Earn-out consideration	800,000		800,000	800,000	$ 0
Debt Obligations - Long Term Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finance lease obligations	102,400,000		102,400,000	103,100,000
Debt Obligations - Long Term Bonds | Estimate of Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finance lease obligations	118,600,000		118,600,000	127,000,000
Variable Interest Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt including finance lease obligations	328,100,000		328,100,000	353,400,000
4.50% Senior Note due 2026
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Senior notes	850,000,000		850,000,000	850,000,000
4.50% Senior Note due 2026 | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value	843,900,000		843,900,000	$ 864,100,000
Wickliffe, Kentucky Manufacturing Facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finance lease obligations	$ 80,000,000		$ 80,000,000