Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
NOL and credit carryforwards	$ 77.3	$ 118.6
Pension, other postretirement and postemployment benefits	26.1	31.1
Payroll and compensation	15.6	16.3
Legal, environmental and self-insurance accruals	15.7	35.9
Working capital accruals	17.5	17.0
Research and experimental expenditures	13.6	0.0
Other	8.1	9.8
Total deferred tax assets	173.9	228.7
Valuation allowance	(69.1)	(89.8)
Net deferred tax assets	104.8	138.9
Deferred tax liabilities:
Intangible assets recorded in acquisitions	84.5	79.4
Basis difference in affiliates	15.3	19.8
Accelerated depreciation	14.4	13.3
Deferred income	0.0	20.2
Other	16.2	16.8
Total deferred tax liabilities	130.4	149.5
Total deferred tax liabilities	$ (25.6)	$ (10.6)

The tax effects as of the balance sheet date of the amount of excesses of tax deductions over taxable income in a year which cannot be used on the tax returns in the current year but may be carried forward to reduce taxable income or income taxes payable in a future year in certain jurisdictions and the tax effects arising from all unused tax credits available to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward amount to realize the deferred tax asset.

No definition available.