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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
Schedule of Income (Loss) from Continuing Operations Before Income Taxes and (Provision for) Benefit from Income Taxes
Income (loss) from continuing operations before income taxes and the (provision for) benefit from income taxes consisted of the following:
Year ended December 31,
202220212020
Income (loss) from continuing operations:
United States$(37.7)$17.2 $39.6 
Foreign64.8 52.7 39.0 
$27.1 $69.9 $78.6 
(Provision for) benefit from income taxes:
Current:
United States$(18.9)$(5.4)$(0.7)
Foreign(9.8)(6.9)(3.8)
Total current(28.7)(12.3)(4.5)
Deferred and other:
United States17.2 0.8 (0.3)
Foreign4.2 0.6 — 
Total deferred and other21.4 1.4 (0.3)
Total provision$(7.3)$(10.9)$(4.8)
Schedule of Effective Income Tax Rate Reconciliation
The reconciliation of income tax computed at the U.S. federal statutory tax rate to our effective income tax rate was as follows:
Year ended December 31,
202220212020
Tax at U.S. federal statutory rate21.0 %21.0 %21.0 %
State and local taxes, net of U.S. federal benefit9.6 %0.4 %1.8 %
U.S. credits and exemptions(13.4)%(20.4)%(4.4)%
Foreign earnings/losses taxed at different rates(9.7)%12.6 %(4.6)%
Nondeductible expenses7.7 %3.3 %2.2 %
Adjustments to uncertain tax positions(9.4)%(2.4)%(4.4)%
Changes in valuation allowance (1)
(19.6)%47.9 %(0.6)%
Share-based compensation(6.4)%(1.8)%(3.6)%
Capital loss (1)
— %(42.5)%— %
Goodwill impairment and basis adjustments(3.9)%7.3 %— %
Statutory rate changes— %2.1 %— %
Adjustments to contingent consideration(0.9)%(8.9)%— %
Non-deductible loss on Asbestos Portfolio Sale (2)
53.7 %— %— %
Other(1.8)%(3.0)%(1.3)%
26.9 %15.6 %6.1 %
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(1) During the fourth quarter of 2021, we generated a capital loss in connection with the liquidation of certain recently acquired entities. All but $2.0 of the income tax benefit associated with the capital loss has been reflected in “Gain (loss) from discontinued operations, net of tax” in the accompanying consolidated statement of operations for the year ended December 31, 2021. As such, the capital loss had only a minimal impact on our effective income tax rate for continuing operations during the year ended December 31, 2021.

(2) The income tax benefit associated with the loss of $73.9 on the Asbestos Portfolio Sale totaled $1.1.
Schedule of Deferred Tax Assets and Liabilities
Significant components of our deferred tax assets and liabilities were as follows:
As of December 31,
20222021
Deferred tax assets:
NOL and credit carryforwards$77.3 $118.6 
Pension, other postretirement and postemployment benefits26.1 31.1 
Payroll and compensation15.6 16.3 
Legal, environmental and self-insurance accruals15.7 35.9 
Working capital accruals17.5 17.0 
Research and experimental expenditures13.6 — 
Other8.1 9.8 
Total deferred tax assets173.9 228.7 
Valuation allowance(69.1)(89.8)
Net deferred tax assets104.8 138.9 
Deferred tax liabilities:
Intangible assets recorded in acquisitions84.5 79.4 
Basis difference in affiliates15.3 19.8 
Accelerated depreciation14.4 13.3 
Deferred income— 20.2 
Other16.2 16.8 
Total deferred tax liabilities130.4 149.5 
$(25.6)$(10.6)
Schedule of Changes in Unrecognized Tax Benefits
The aggregate changes in the balance of unrecognized tax benefits for the years ended December 31, 2022, 2021, and 2020 were as follows:
Year ended December 31,
202220212020
Unrecognized tax benefit — opening balance$7.1 $13.6 $17.2 
Gross increases — tax positions in prior period— 0.7 0.3 
Gross decreases — tax positions in prior period(0.7)(6.4)(2.2)
Gross increases — tax positions in current period0.1 0.2 0.2 
Settlements— — (0.3)
Statute expirations(1.9)(1.1)(1.7)
Change due to foreign currency exchange rates(0.1)0.1 0.1 
Unrecognized tax benefit — ending balance$4.5 $7.1 $13.6