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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2024
Income Tax Disclosure [Abstract]  
Schedule of Loss Before Income Taxes
For the years ended December 31, 2024, 2023, and 2022, our loss before income taxes was comprised of the following (in thousands):

Year Ended December 31,
202420232022
Domestic$(55,183)$(89,925)$(102,434)
Foreign(36,025)(18,307)(47,794)
Total$(91,208)$(108,232)$(150,228)
Schedule of Components of Income Tax Expense
For the years ended December 31, 2024, 2023, and 2022, our income tax expense was comprised of the following (in thousands):
Year Ended December 31,
202420232022
Current:
Federal$(10)$34 $72 
State149 223 119 
Foreign1,864 4,523 1,409 
Total current expense2,003 4,780 1,600 
Deferred:
Federal— — — 
State— — — 
Foreign(949)(1,571)(908)
Total deferred benefit(949)(1,571)(908)
Total income tax expense$1,054 $3,209 $692 
Schedule of Reconciliation of Statutory to Effective Income Tax Rate
For the years ended December 31, 2024, 2023, and 2022, the provision for income taxes differs from the amount computed by applying the federal statutory income tax rates to our loss before the provision for income taxes as follows:

Year Ended December 31,
202420232022
U.S. federal statutory tax rate21.0 %21.0 %21.0 %
State tax expense4.3 3.8 4.1 
Foreign rate differential(4.0)(3.1)(3.3)
Nondeductible expenses(1.0)(0.7)(0.3)
Foreign tax expense0.1 (0.4)0.3 
Equity compensation3.7 (2.4)1.0 
Tax credits7.3 9.5 4.7 
Unrecognized tax benefits(1.5)(1.8)(0.9)
Global intangible low-taxed income
(3.0)— — 
Change in tax rate0.8 (0.9)0.3 
Other(0.5)0.2 (0.5)
Return to provision
3.3 — — 
Deferred adjustments(1.4)(3.0)(0.8)
Change in valuation allowance(30.3)(25.2)(26.1)
Total(1.2)%(3.0)%(0.5)%
Schedule of Deferred Tax Assets and Liabilities
As of December 31, 2024 and 2023, significant components of our deferred tax assets and liabilities were as follows (in thousands):

As of December 31,
20242023
Deferred tax assets:
Net operating losses$107,170 $103,299 
Tax credits34,885 29,582 
Deferred revenue521 861 
Equity compensation3,994 4,879 
Lease liabilities17,465 18,822 
Accrued compensation3,225 3,323 
Bad debt502 447 
Other accrued expense318 218 
Capitalized research and development costs45,820 35,047 
Other4,033 1,369 
Gross deferred tax assets217,933 197,847 
Less: Valuation allowance(187,969)(161,966)
Total deferred tax assets29,964 35,881 
Deferred tax liabilities:
Prepaid expenses(13,298)(16,505)
Right-of-use assets(8,406)(10,626)
Depreciation(3,245)(3,779)
Intangible assets(688)(1,179)
Other(198)(341)
Total deferred tax liabilities(25,835)(32,430)
Net deferred tax assets$4,129 $3,451 
Schedule of Valuation Allowance The following table summarizes the activity related to our valuation allowances for the years ended December 31, 2024, 2023, and 2022 (in thousands):
Year Ended December 31,
202420232022
Beginning balance
$161,966 $132,581 $94,399 
Charged to expense
27,605 27,267 39,203 
Foreign currency translation adjustments
(1,602)2,118 (1,021)
Deductions from reserve
— — — 
Ending balance
$187,969 $161,966 $132,581 
Schedule of Unrecognized Tax Benefits Roll Forward The following table summarizes the activity related to our unrecognized tax benefit from December 31, 2021 to December 31, 2024 (in thousands):
Balance as of December 31, 2021
$3,089 
Additions for tax positions in current years 1,399 
Additions for tax positions in prior years — 
Reductions due to lapse in statutes of limitations — 
Settlements — 
Balance as of December 31, 2022
4,488 
Additions for tax positions in current years 1,740 
Additions for tax positions in prior years 256 
Reductions due to lapse in statutes of limitations — 
Settlements — 
Balance as of December 31, 2023
6,484 
Additions for tax positions in current years 1,374 
Reductions for tax positions in prior years
(18)
Reductions due to lapse in statutes of limitations — 
Settlements — 
Balance as of December 31, 2024
$7,840