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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
Schedule of Loss Before Income Taxes
For the years ended December 31, 2022, 2021, and 2020, our loss before income taxes was comprised of the following (in thousands):

Year Ended December 31,
202220212020
Domestic$(102,434)$(48,743)$(25,463)
Foreign(47,794)(39,120)(7,131)
Total$(150,228)$(87,863)$(32,594)
Schedule of Components of Income Tax Expense (Benefit)
For the years ended December 31, 2022, 2021, and 2020, our income tax expense (benefit) was comprised of the following (in thousands):
Year Ended December 31,
202220212020
Current:
Federal$72 $15 $11 
State119 79 79 
Foreign1,409 1,156 977 
Total current expense1,600 1,250 1,067 
Deferred:
Federal— — — 
State— — — 
Foreign(908)(472)(184)
Total deferred benefit(908)(472)(184)
Total income tax expense$692 $778 $883 
Schedule of Reconciliation of Statutory to Effective Income Tax Rate
For the years ended December 31, 2022, 2021, and 2020, the provision for income taxes differs from the amount computed by applying the federal statutory income tax rates to our loss before the provision (benefit) for income taxes as follows:

Year Ended December 31,
202220212020
U.S. federal statutory tax rate21.0 %21.0 %21.0 %
State tax expense4.1 4.7 18.2 
Foreign rate differential(3.3)(4.1)(3.6)
Nondeductible expenses(0.3)(0.5)(0.6)
Foreign tax expense0.3 (0.2)— 
Equity compensation1.0 7.0 46.2 
Tax credits4.7 5.0 12.0 
Unrecognized tax benefits(0.9)(0.9)(2.2)
Change in tax rate0.3 (1.2)— 
Other(0.5)(0.1)(1.1)
Deferred adjustments(0.8)0.9 (1.7)
Change in valuation allowance(26.1)(32.5)(90.9)
Total(0.5)%(0.9)%(2.7)%
Schedule of Deferred Tax Assets and Liabilities As of December 31, 2022 and 2021, significant components of our deferred tax assets and liabilities were as follows (in thousands):
As of December 31,
20222021
Deferred tax assets:
Net operating losses$85,442 $81,499 
Tax credits21,215 15,510 
Deferred revenue416 466 
Equity compensation5,314 4,917 
Lease liabilities17,732 15,089 
Accrued compensation4,510 3,390 
Bad debt656 373 
Other accrued expense16 1,452 
Capitalized research and development costs29,991 — 
Other431 301 
Gross deferred tax assets165,723 122,997 
Less: Valuation allowance(132,581)(94,399)
Total deferred tax assets33,142 28,598 
Deferred tax liabilities:
Prepaid expenses(15,309)(12,576)
Right-of-use assets(10,056)(7,361)
Unbilled receivables— (1,248)
Depreciation(4,275)(3,892)
Intangible assets(1,540)(2,102)
Other(123)(603)
Total deferred tax liabilities(31,303)(27,782)
Net deferred tax assets$1,839 $816 
Schedule of Activity Related to Unrecognized Tax Benefit The following table summarizes the activity related to our unrecognized tax benefit from December 31, 2019 to December 31, 2022 (in thousands):
Balance as of December 31, 2019
$1,575 
Additions for tax positions in current years 702 
Additions for tax positions in prior years — 
Reductions due to lapse in statutes of limitations — 
Settlements — 
Balance as of December 31, 2020
2,277 
Additions for tax positions in current years 812 
Additions for tax positions in prior years — 
Reductions due to lapse in statutes of limitations — 
Settlements — 
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