Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2023

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

Selected quarterly financial information for 2023 and 2022 is as follows:


	Quarter Ended
	Dec. 31, 2023		Sept. 30, 2023		Jun. 30, 2023		Mar. 31, 2023		Dec. 31, 2022		Sept. 30, 2022		Jun. 30, 2022		Mar. 31, 2022

	(unaudited, in thousands, except per share data)
Revenue	$	239,062	$	230,105	$	222,882	$	218,439	$	208,345	$	198,342	$	189,382	$	182,777
Cost of revenue (1)(2)	112,493		111,080		104,361		104,756		96,294		94,111		88,229		88,867
Gross profit	126,569		119,025		118,521		113,683		112,051		104,231		101,153		93,910
Operating expenses:
Research and development (1)(2)	38,873		40,391		39,210		38,108		36,865		34,113		34,992		35,824
Sales and marketing (1)(2)	72,956		73,366		74,077		76,314		65,928		67,353		64,098		64,611
General and administrative (1)(2)	33,338		31,006		30,477		28,258		22,509		24,496		23,824		24,314
Total operating expenses	145,167		144,763		143,764		142,680		125,302		125,962		122,914		124,749
Loss from operations	(18,598)		(25,738)		(25,243)		(28,997)		(13,251)		(21,731)		(21,761)		(30,839)
Other (expense) income, net:
Interest expense	(1,963)		(1,972)		(1,866)		(1,845)		(1,887)		(1,879)		(1,857)		(1,870)
Interest income and other	8,322		8,233		6,123		4,121		2,706		982		280		845
Total other income (expense), net	6,359		6,261		4,257		2,276		819		(897)		(1,577)		(1,025)
Loss before income taxes	(12,239)		(19,477)		(20,986)		(26,721)		(12,432)		(22,628)		(23,338)		(31,864)
Provision for (benefit from) income taxes	119		942		753		527		1,221		579		332		2,256
Net loss	$	(12,358)	$	(20,419)	$	(21,739)	$	(27,248)	$	(13,653)	$	(23,207)	$	(23,670)	$	(34,120)
Net loss per share:
Basic	$	(0.17)	$	(0.28)	$	(0.30)	$	(0.38)	$	(0.19)	$	(0.33)	$	(0.34)	$	(0.49)
Diluted	$	(0.17)	$	(0.28)	$	(0.30)	$	(0.38)	$	(0.19)	$	(0.33)	$	(0.34)	$	(0.49)
Shares used in computing net loss per share:
Basic	72,926		72,356		71,627		71,259		70,704		70,232		69,748		68,974
Diluted	72,926		72,356		71,627		71,259		70,704		70,232		69,748		68,974

(1) Included stock-based compensation as follows:


	Quarter Ended
	Dec. 31, 2023		Sept. 30, 2023		Jun. 30, 2023		Mar. 31, 2023		Dec. 31, 2022		Sept. 30, 2022		Jun. 30, 2022		Mar. 31, 2022

	(unaudited, in thousands)
Cost of revenue	$	9,182	$	9,856	$	9,888	$	9,333	$	8,638	$	8,329	$	8,538	$	7,793
Research and development	12,055		12,980		13,013		12,382		11,799		10,603		11,818		10,145
Sales and marketing	15,389		16,404		17,391		17,045		15,152		15,761		14,963		13,424
General and administrative	12,945		13,371		13,075		11,983		8,235		9,810		9,467		8,032
Total stock-based compensation	$	49,571	$	52,611	$	53,367	$	50,743	$	43,824	$	44,503	$	44,786	$	39,394

(2) Included depreciation and amortization expenses as follows:


	Quarter Ended
	Dec. 31, 2023		Sept. 30, 2023		Jun. 30, 2023		Mar. 31, 2023		Dec. 31, 2022		Sept. 30, 2022		Jun. 30, 2022		Mar. 31, 2022

	(unaudited, in thousands)
Cost of revenue	$	10,308	$	10,075	$	9,269	$	8,907	$	8,803	$	8,904	$	8,747	$	8,500
Research and development	1,012		831		868		872		768		768		804		825
Sales and marketing	27		36		1		1		1		1		1		1
General and administrative	1,615		1,540		1,586		1,567		1,449		1,542		2,088		1,469
Total depreciation and amortization	$	12,962	$	12,482	$	11,724	$	11,347	$	11,021	$	11,215	$	11,640	$	10,795