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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Components of Loss Before Income Taxes

Loss before income taxes included in the consolidated statements of operations was as follows:

			Year Ended December 31,
			2020						2019						2018
			(in thousands)
United States			$	(72,846)					$	(41,111)					$	(39,754)
Foreign			(24,017)						(12,692)						(15,325)
Loss before income taxes			$	(96,863)					$	(53,803)					$	(55,079)

Summary of Income Tax (Benefit) Expense

Income tax expense included in the consolidated statements of operations was as follows:

			Year Ended December 31,
			2020						2019						2018
			(in thousands)
Current:
Federal			$	8					$	260					$	124
State and local			122						109						126
Foreign			1,149						255						228
Total current tax expense			1,279						624						478
Deferred:
Federal			9						9						(285)
State and local			2						2						16
Foreign			696						(593)						257
Total deferred tax expense (benefit)			707						(582)						(12)
Income tax expense			$	1,986					$	42					$	466

Reconciliation of Income Taxes Computed at Federal Statutory Rate and Provision for Income Taxes

The reconciliation of the federal statutory rate of 21% to the effective income tax rate for the years ended December 31, 2020, 2019 and 2018 was as follows:

			Year Ended December 31,
			2020						2019						2018
Federal statutory rate			21.0		%				21.0		%				21.0		%
State taxes, net of federal benefit			(0.1)						(0.2)						(0.2)
Permanent differences			(4.0)						(2.8)						0.2
Stock-based compensation			12.1						22.3						9.3
Federal research and development credit			1.1						1.3						1.2
Foreign rate differential			(1.4)						(1.4)						(1.1)
Change in valuation allowance			(30.0)						(41.0)						(32.8)
Other			(0.8)						0.7						1.5
Effective income tax rate			(2.1)		%				(0.1)		%				(0.9)		%

Components of Net Deferred Tax Assets and Liabilities

Net deferred tax assets and liabilities, as set forth in the table below, reflect the impact of temporary differences between the amounts of assets and liabilities recorded for financial statement purposes and such amounts measured in accordance with tax laws:

			As of December 31,
			2020						2019
			(in thousands)
Deferred tax assets:
Accruals and reserves			$	1,272					$	323
Net operating loss carryforwards			117,478						85,969
Deferred revenue			7,951						14,401
Depreciation			3,330						2,335
Research and development credits			6,201						4,665
Operating lease liabilities			20,967						19,657
Stock-based compensation			4,755						3,806
Tax credits			1,148						1,181
Other			2,105						61
Gross deferred tax assets			165,207						132,398
Valuation allowance			(110,350)						(94,581)
Total deferred tax assets			54,857						37,817
Deferred tax liabilities:
Intangible assets			(5,717)						(2,249)
Operating lease ROU assets			(16,233)						(14,792)
Convertible senior notes			(17,961)						(9,959)
Deferred contract acquisition and fulfillment costs			(15,908)						(11,565)
Other			(543)						(20)
Total deferred tax liabilities			(56,362)						(38,585)
Net deferred tax liabilities			$	(1,505)					$	(768)

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

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