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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
Provision for Income Taxes
The provisions expense for income taxes for the years indicated were as follows (in millions):
 Years Ended December 31,
 20222021
Current tax expense (benefit)
Federal$(2.7)$0.1 
State2.9 1.8 
Foreign(0.4)1.8 
Net current tax expense (benefit)(0.2)3.7 
Deferred tax expense (benefit)
Federal(0.6)0.8 
State0.1 0.2 
Foreign1.6 0.9 
Net deferred tax expense1.1 1.9 
Income tax expense$0.9 $5.6 
Components of Income (Loss) from Continuing Operations Before Income Taxes
The US and foreign components of income (loss) from continuing operations before income taxes for the years indicated were as follows (in millions):
 Years Ended December 31,
 20222021
US$(45.1)$(89.7)
Foreign4.0 9.0 
Loss from continuing operations before income taxes$(41.1)$(80.7)
Federal Statutory Income Tax Rate to Income (Loss) Before Income Taxes
For the years indicated, the provisions expense for income taxes differed from the amount computed by applying the federal statutory income tax rate to income (loss) before income taxes due to the following items (in millions):
 Years Ended December 31,
 20222021
Tax (benefit) at federal statutory rate$(8.6)$(17.0)
Permanent differences0.3 0.4 
State tax, net of federal benefit1.0 (1.6)
Foreign rate differential— 0.4 
Executive and stock compensation0.1 0.4 
Increase (decrease) in valuation allowance(0.7)(0.6)
Transaction costs— 0.5 
Return to provision3.2 3.3 
Rate change1.7 20.2 
Outside basis difference4.2 0.9 
Other 0.7 1.6 
Equity income(1.0)(1.1)
Derivative— (1.8)
Income tax expense$0.9 $5.6 
Significant Components of Company's Deferred Tax Assets and Liabilities Net deferred tax balances as of the years indicated were comprised of the following (in millions):
December 31,
20222021
Net operating loss carryforwards$82.5 $63.8 
Basis difference in fixed assets0.3 0.7 
Deferred compensation7.2 6.7 
Sec. 163(j) carryforward46.3 58.1 
Lease liability20.5 20.9 
Other deferred tax assets13.3 13.4 
Total deferred tax assets170.1 163.6 
Valuation allowance(101.6)(102.8)
Total net deferred tax assets68.5 60.8 
Basis difference in fixed assets(17.5)(14.1)
Right of use assets(19.1)(19.8)
Basis difference in intangibles(27.8)(26.1)
Other deferred tax liabilities(11.5)(6.9)
Total deferred tax liabilities(75.9)(66.9)
Net deferred tax liabilities$(7.4)$(6.1)
Summary of Reconciliation of Unrecognized Tax Benefits
Below is a tabular reconciliation of the total amount of unrecognized tax benefits as of the years indicated (in millions):
Year Ended December 31,
20222021
Uncertain tax benefits - January 1$17.6 $22.9 
Gross decreases - Tax positions in prior period— (5.3)
Uncertain tax benefits - December 31$17.6 $17.6