Incentive Plans - Schedule of Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Long-term incentive units
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred compensation, expensed	$ 3.7	$ 5.1	$ 10.1	$ 16.7
Deferred compensation, capitalized	0.1		0.1	0.1
Unearned Compensation	21.1		$ 21.1		$ 20.7
Expected period to recognize unearned compensation (in years)			2 years 3 months 18 days
Market-based performance awards
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred compensation, expensed	3.1	5.5	$ 8.6	16.1
Deferred compensation, capitalized	0.1	0.2	0.2	0.4
Unearned Compensation	25.0		$ 25.0		30.3
Expected period to recognize unearned compensation (in years)			2 years 3 months 18 days
Service Based Restricted Stock Units
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred compensation, expensed	8.2	6.7	$ 24.1	18.9
Deferred compensation, capitalized	1.8	0.9	4.4	3.7
Unearned Compensation	74.2		$ 74.2		55.4
Expected period to recognize unearned compensation (in years)			2 years 8 months 12 days
Interxion awards
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred compensation, expensed	0.3	$ 1.6	$ 1.6	$ 3.7
Deferred compensation, capitalized			0.1
Unearned Compensation	$ 0.2		$ 0.2		$ 1.9
Expected period to recognize unearned compensation (in years)			3 months 18 days