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Income taxes (Tables)
12 Months Ended
Dec. 31, 2024
Income Tax Disclosure [Abstract]  
Summary of Significant Components of the Provisions for Income Taxes Attributable to Operations
Significant components of income taxes attributable to operations consist of the following:
 
Year Ended December 31,
202420232022
Current   
Federal$4.4 $(0.6)$(9.4)
State1.4 0.5 1.9 
International47.4 36.7 33.8 
Total current53.2 36.6 26.3 
Deferred
Federal(4.4)(2.0)(37.7)
State— (1.2)(3.2)
International(1.1)(4.1)7.2 
Total deferred(5.5)(7.3)(33.7)
Income tax (benefit) provision$47.7 $29.3 $(7.4)
Schedule of Deferred Tax Assets and Liabilities
The Company's net deferred tax liability consists of the following:
 
December 31,

20242023
Deferred tax assets
Federal losses carryforward$108.7 $58.7 
State losses carryforward67.1 38.9 
R&D carryforward22.6 21.9 
Stock compensation4.6 6.8 
Foreign losses carryforward14.4 13.9 
Inventory reserves10.1 12.6 
Lease liability3.3 4.3 
IRC 263A capitalized costs1.3 2.8 
Capitalized R&D38.2 35.3 
IRC 163(j) Interest Limitation44.6 26.2 
Fixed assets14.2 26.7 
Intangible assets13.4 13.8 
Accrued compensation0.3 2.8 
Other3.4 4.8 
Gross deferred tax assets346.2 269.5 
Valuation allowance(339.0)(257.8)
Total deferred tax assets7.2 11.7 
Deferred tax liabilities
Fixed assets(1.8)(2.6)
Intangible assets(38.1)(40.4)
Right-of-use asset(3.1)(4.0)
Foreign Withholding Tax(1.2)(5.5)
Prepaid expenses(4.1)(4.2)
Other(0.6)(2.2)
Total deferred tax liabilities(48.9)(58.9)
Net deferred tax liabilities$(41.7)$(47.2)
Schedule of Unrecognized Tax Benefits Activity
Income taxes differ from the amount of taxes determined by applying the U.S. federal statutory rate to income before taxes as a result of the following:
 
Year Ended December 31,
202420232022
U.S.$(355.5)$(805.1)$(442.6)
International212.6 73.9 224.0 
Loss before income taxes
(142.9)(731.2)(218.6)
Federal tax at statutory rates$(30.0)$(153.6)$(46.0)
State taxes, net of federal benefit(28.6)(52.7)(13.5)
Impact of foreign operations1.5 (8.5)(7.2)
Change in valuation allowance80.2 193.6 37.8 
Tax credits(0.2)(0.9)(3.5)
Pillar Two tax6.8 — — 
Stock compensation4.1 6.8 4.7 
Goodwill Impairments— 23.3 1.8 
Adjustment of prior year taxes0.4 1.3 (1.8)
Compensation limitation1.7 0.3 0.7 
Unrecognized tax benefit(3.5)(0.6)(9.0)
Impact of divestitures(3.9)1.0 — 
GILTI, net15.8 17.8 20.7 
Foreign withholding tax3.5 0.8 4.7 
Permanent differences(0.1)0.7 3.2 
Income tax (benefit) provision$47.7 $29.3 $(7.4)
Reconciliation of Income Before the Provision for Income Taxes
The table below presents the gross unrecognized tax benefits activity for the years ended December 31, 2024, 2023 and 2022:
Year Ended December 31,
202420232022
Gross unrecognized tax benefits, beginning of period$6.6 $6.8 $12.7 
Increases (decreases) for tax positions for prior years— 0.4 (1.5)
Increases for tax positions for current year— 0.1 0.7 
Settlements(2.3)— — 
Lapse of statute of limitations(2.6)(0.7)(5.1)
Gross unrecognized tax benefits, end of period$1.7 $6.6 $6.8