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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2023
Income Tax Disclosure [Abstract]  
Summary of Net Loss Before Provision for Income Taxes
Net loss before provision for income taxes consisted of the following (in thousands):
Year ended December 31,
202320222021
United States$(190,912)$(898,036)$(394,392)
International34,067 23,983 20,670 
Total net loss before provision for income taxes$(156,845)$(874,053)$(373,722)
Summary of Provision for Income Taxes
The provision for income taxes consisted of the following (in thousands):
Year ended December 31,
202320222021
Current
Federal$— $— $— 
State1,792 1,104 746 
Foreign5,972 4,710 3,580 
Total current$7,764 $5,814 $4,326 
Deferred
Federal$— $— $— 
State— — — 
Foreign631 (701)(1,798)
Total deferred631 (701)(1,798)
Total income tax provision$8,395 $5,113 $2,528 
Summary of Variation of Effective Provision for (Benefit from) Income Taxes from Statutory Federal Income Tax Rate
The provision for income taxes differed from the amounts computed by applying the U.S. federal income tax rate to pretax loss as a result of the following (in thousands):
 Year ended December 31,
 202320222021
Federal tax benefit at statutory rate$(32,937)$(183,551)$(78,482)
State tax, net of federal tax benefit1,415 848 314 
Research and development credits(11,574)(12,830)(10,135)
Share-based compensation10,956 5,828 (45,501)
Loss on debt extinguishment— 19 365 
Other permanent differences1,674 3,143 835 
Global intangible low-taxed income3,035 — — 
Foreign tax rate differential548 (2,497)(4,104)
Net operating losses not recognized35,278 194,153 139,236 
Release of valuation allowance associated with acquisitions— — — 
Total income tax provision$8,395 $5,113 $2,528 
Summary of Deferred Income Tax Assets and Liabilities
The types of temporary differences that give rise to significant portions of the Company’s deferred tax assets and liabilities are as follows (in thousands):
Year ended December 31,
20232022
Deferred tax assets
Net operating loss and credit carry-forwards$463,400 $491,323 
Research and development credits87,111 71,756 
Research and development expenditure capitalization130,792 75,821 
Basis difference in investments40,655 107,756 
Sales tax accrual67 90 
Share-based compensation21,014 14,986 
Acquired intangibles76,171 50,156 
Accrued liabilities17,994 16,550 
Gross deferred tax assets837,204 828,438 
Valuation allowance(674,720)(669,690)
Total deferred tax assets162,484 158,748 
Deferred tax liabilities
Deferred sales commissions(117,875)(117,724)
Lease right of use assets(8,255)(7,045)
Property and equipment(35,753)(32,746)
Net deferred tax assets$601 $1,233 
Summary of Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits
The following shows the changes in the gross amount of unrecognized tax benefits as of December 31, 2023 (in thousands):
202320222021
Unrecognized tax benefits, beginning of the year$26,412 $20,010 $14,158 
Increases related to prior year tax positions— — — 
Decreases related to prior year tax positions(418)— — 
Increases related to current year tax positions5,982 6,402 5,852 
Unrecognized tax benefits, end of year$31,976 $26,412 $20,010