Employee Benefit Plans - Fair Value Measurements (Details) - Quoted Prices in Active Markets for Identical Assets (Level 1) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plans
Fair value of plan assets	$ 114.9	$ 149.2
Cash
Defined Benefit Plans
Fair value of plan assets	0.6	0.6
U.S. treasury bonds
Defined Benefit Plans
Fair value of plan assets	$ 30.1	22.7
Equity mutual funds
Defined Benefit Plans
Target allocation percentage of investments	12.00%
Fair value of plan assets	$ 13.2	15.2
Fixed income mutual funds
Defined Benefit Plans
Target allocation percentage of investments	88.00%
Fair value of plan assets	$ 71.0	$ 110.7