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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provision

The following table presents our (provision for) benefit from income taxes (in thousands):

			Years Ended December 31,
			2023						2022						2021
Current income taxes:
Federal			$	(2,460)					$	(113)					$	—
State			(3,064)						(2,172)						(852)
Foreign			(33)						(3,702)						(7,449)
Total current provision for income taxes			(5,557)						(5,987)						(8,301)
Deferred income taxes:
Federal			(26,210)						147,236						(250)
State			(1,634)						19,995						(218)
Foreign			1,269						1,448						1,572
Total deferred benefit from income taxes			(26,575)						168,679						1,104
Total (provision for) benefit from income taxes			$	(32,132)					$	162,692					$	(7,197)

Schedule of Income (Loss) before Benefit from (Provision for) Income Taxes

The following table presents our income before (provision for) benefit from income taxes (in thousands):

			Years Ended December 31,
			2023						2022						2021
United States			$	61,152					$	123,269					$	(6,256)
Foreign			(10,840)						(19,323)						11,995
Total income before (provision for) benefit from income taxes			$	50,312					$	103,946					$	5,739

Schedule of Effective Income Tax Rate Reconciliation

The following table presents the differences between our (provision for) benefit from income taxes as presented in the accompanying consolidated statements of operations and the income tax expense computed at the federal statutory rate as a percentage of income before (provision for) benefit from income taxes (in percentages):

			Years Ended December 31,
			2023						2022						2021
Income tax at U.S. statutory rate			21.0		%				21.0		%				21.0		%
State, net of federal benefit			11.6						1.6						(232)
Taxes on foreign earnings			0.7						(1.1)						35.5
Share-based compensation			39.3						15.3						(209.0)
Non-deductible expenses			(2.5)						1.6						1.5
Tax credits			0.8						(0.7)						(28.3)
Change in valuation allowance			4.2						(210.5)						2,954.3
Settlement of Unrecognized Tax Benefits			(8.0)						0.0						0.0
Foreign-Derived Intangible Income			(5.2)						0.0						0.0
Other			2.0						1.3						0.5
Convertible senior notes			0.0						15.0						(2,435.3)
Acquisition related			0.0						0.0						17.2
Total			63.9		%				(156.5)		%				125.4		%

Schedule of Deferred Tax Assets and Liabilities

The following table presents a summary of our deferred tax assets (in thousands):

			December 31,
			2023						2022
Deferred tax assets:
Accrued expenses and reserves			$	10,442					$	7,990
Share-based compensation			11,200						10,078
Net operating loss and credits carryforwards			92,302						147,465
Convertible senior notes			5,566						16,648
Research and experimental expenditures capitalization			69,362						37,719
Other items			6,133						6,777
Gross deferred tax assets			195,005						226,677
Valuation allowance			(40,162)						(36,122)
Total deferred tax assets			$	154,843					$	190,555
Deferred tax liabilities:
Property and equipment, textbooks and intangibles assets			$	(2,621)					$	(14,766)
Other			(13,134)						(10,070)
Total deferred tax liabilities			$	(15,755)					$	(24,836)
Net deferred tax asset (liability)			$	139,088					$	165,719

Schedule of Reconciliation of Unrecognized Tax Benefits

The following table presents the reconciliation of the beginning and ending balances of the total amount of unrecognized tax benefits, excluding accrued interest and penalties (in thousands):

			Years Ended December 31,
			2023						2022						2021
Beginning balance			$	16,953					$	16,805					$	14,654
Increase in tax positions for prior years			—						333						305
Decrease in tax positions for prior years			(131)						(876)						(952)
Decrease in tax positions for prior year settlement			(4,703)						(386)						(22)
Decrease in tax positions for prior years due to statutes lapsing			—						—						(426)
Increase in tax positions for current year			281						1,520						3,309
Change due to translation of foreign currencies			—						(443)						(63)
Ending balance			$	12,400					$	16,953					$	16,805

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