Incentive Plans - Schedule of Compensation Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Long-term incentive units
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred compensation, expensed	$ 14.5	$ 21.7	$ 15.4
Deferred compensation, capitalized	0.2	0.2	0.2
Unearned Compensation	$ 16.6	$ 20.7
Expected period to recognize unearned compensation (in years)	2 years 1 month 6 days	2 years 1 month 6 days
Market-based performance awards
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred compensation, expensed	$ 12.9	$ 21.4	23.9
Deferred compensation, capitalized	0.2	0.5	0.7
Unearned Compensation	$ 19.9	$ 30.3
Expected period to recognize unearned compensation (in years)	2 years	2 years
Service Based Restricted Stock Units
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred compensation, expensed	$ 21.1	$ 25.9	23.2
Deferred compensation, capitalized	7.5	5.4	3.3
Unearned Compensation	$ 66.4	$ 55.4
Expected period to recognize unearned compensation (in years)	2 years 6 months	2 years 6 months
Interxion awards
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred compensation, expensed	$ 6.0	$ 4.7	$ 17.7
Deferred compensation, capitalized	$ 0.1
Unearned Compensation		$ 1.9
Expected period to recognize unearned compensation (in years)	0 years	0 years