Employee Benefit Plans - Schedule of Plan Assets Using the Fair Value Hierarchy (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 164.8	$ 166.0
Net Asset Value ("NAV")
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	150.8	151.8
Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.7	0.7
Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.7	0.6
Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		12.6	12.9
U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		32.7	32.3
U.S. equity | Net Asset Value ("NAV")
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	32.7	32.3
U.S. equity | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
U.S. equity | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
U.S. equity | Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
International equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		31.9	30.6
International equity | Net Asset Value ("NAV")
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	31.9	30.6
International equity | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
International equity | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
International equity | Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Corporate bonds and notes
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		27.1	35.7
Corporate bonds and notes | Net Asset Value ("NAV")
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	27.1	35.7
Corporate bonds and notes | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Corporate bonds and notes | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Corporate bonds and notes | Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Government and agency bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		34.7	30.1
Government and agency bonds | Net Asset Value ("NAV")
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	34.7	30.1
Government and agency bonds | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Government and agency bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Government and agency bonds | Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Commingled funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		18.9	17.8
Commingled funds | Net Asset Value ("NAV")
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	18.9	17.8
Commingled funds | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Commingled funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Commingled funds | Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
International fixed income
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		2.2	0.5
International fixed income | Net Asset Value ("NAV")
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	2.2	0.5
International fixed income | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
International fixed income | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
International fixed income | Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.7	0.6
Cash and cash equivalents | Net Asset Value ("NAV")
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	0.0	0.0
Cash and cash equivalents | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Cash and cash equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.7	0.6
Cash and cash equivalents | Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Money market funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.7	0.7
Money market funds | Net Asset Value ("NAV")
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	0.0	0.0
Money market funds | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.7	0.7
Money market funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Money market funds | Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		3.3	4.8
Other | Net Asset Value ("NAV")
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	3.3	4.8
Other | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Other | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Other | Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Insurance Group Annuity Contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		12.6	12.9	$ 12.6
Insurance Group Annuity Contracts | Net Asset Value ("NAV")
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	0.0	0.0
Insurance Group Annuity Contracts | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Insurance Group Annuity Contracts | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0.0	0.0
Insurance Group Annuity Contracts | Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 12.6	$ 12.9

[1] Certain assets that are measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy.