Strategic Transformation, Restructuring and Other Asset Gains and Charges - Narrative (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Restructuring charges:
Hosting arrangement, service contract, implementation cost, capitalized, before accumulated amortization	$ 33.8			$ 33.8		$ 30.6
Gain (loss) on disposition of property plant equipment	0.2	$ 0.1		1.1	$ 3.5
Costs associated with leadership change and overhead restructuring	0.0	0.3		0.0	7.3
Workforce reductions	0.9	0.0		0.9	0.0
Total asset impairment charges	0.0	0.8		0.0	0.8
Other Restructuring
Restructuring charges:
Share-based payment arrangement, recovery of expense		0.2			1.0
Restructuring and related cost, incurred cost		0.3			$ 5.5
Abandonment
Restructuring charges:
Total asset impairment charges		$ 0.8
Chief Executive Officer | Other Restructuring
Restructuring charges:
Costs associated with leadership change and overhead restructuring			$ 1.8
Share-based payment arrangement, recovery of expense			1.6
Discontinued Operations, Disposed of by Sale | Tacoma Exit Plan
Restructuring charges:
Disposal group, including discontinued operation, consideration			19.9
Gain (loss) on disposition of property plant equipment			$ 3.4
Prepaid Expenses and Other Current Assets
Restructuring charges:
Hosting arrangement, service contract, implementation cost, capitalized, before accumulated amortization	3.8			3.8		3.3
Other Noncurrent Assets
Restructuring charges:
Hosting arrangement, service contract, implementation cost, capitalized, before accumulated amortization	$ 30.0			$ 30.0		$ 27.3