Employee Benefit Plans (Schedule of Fair Value of Pension Plan Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	$ 187.8	$ 175.8	$ 227.7	$ 215.3
Fixed income
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	47.7	39.8
Equities
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	120.0	104.8
Stable value funds
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	7.3	22.1
Money market funds, cash and other
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	12.8	9.1
Level 1
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	153.5	125.1
Level 1 | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	46.3	25.9
Level 1 | Equities
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	107.2	99.2
Level 1 | Stable value funds
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	0.0	0.0
Level 1 | Money market funds, cash and other
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	0.0	0.0
Level 2
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	21.5	41.6
Level 2 | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	1.4	13.9
Level 2 | Equities
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	12.8	5.6
Level 2 | Stable value funds
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	7.3	22.1
Level 2 | Money market funds, cash and other
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	0.0	0.0
Level 3
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	6.9	0.0
Level 3 | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	0.0	0.0
Level 3 | Equities
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	0.0	0.0
Level 3 | Stable value funds
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	0.0	0.0
Level 3 | Money market funds, cash and other
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	6.9	0.0
Assets Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	5.9	9.1
Assets Measured at NAV | Money market funds, cash and other
Defined Benefit Plan Disclosure [Line Items]
Total investments at fair value	$ 5.9	$ 9.1