Employee Benefit Plans - Pension Plans, Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Aug. 01, 2020 hour
Employee benefit plans
Employer matching contribution	100.00%
Employee matching contribution	4.00%
Soft freeze, hours threshold | hour				1,000
Total expense for all retirement plans	$ 4.5	$ 10.1	$ 8.2
Pension Plans
Employee benefit plans
Accumulated benefit obligation for funded defined benefit pension plan	182.3	243.6	254.2
Accumulated benefit obligation for unfunded defined benefit pension plan	$ 2.5	$ 3.3	$ 4.4
Target allocation of any one stock, maximum (as a percent)	10.00%
Maximum average maturity of bond portfolio	10 years
2023	$ 8.7
2024	9.0
2025	9.6
2026	9.9
2027	10.4
2028 to 2032	60.2
Pension Plans | Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent
Employee benefit plans
Expected amortization next fiscal year	1.6
Pension Plans | Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent
Employee benefit plans
Expected amortization next fiscal year	$ 1.5
Pension Plans | Common stock | Minimum
Employee benefit plans
Target allocation, (as a percent)	30.00%	30.00%
Pension Plans | Common stock | Maximum
Employee benefit plans
Target allocation, (as a percent)	60.00%	60.00%
Pension Plans | Mutual funds | Minimum
Employee benefit plans
Target allocation, (as a percent)	20.00%	20.00%
Pension Plans | Mutual funds | Maximum
Employee benefit plans
Target allocation, (as a percent)	50.00%	50.00%