CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net revenue	$ 297,766,000	$ 277,472,000	$ 219,296,000
Cost of revenue	168,138,000	130,810,000	106,555,000
Gross profit	129,628,000	146,662,000	112,741,000
Operating expense:
Selling, general, and administrative expense	166,736,000	122,200,000	86,694,000
Marketing expense	59,109,000	57,338,000	55,271,000
Impairment expense	3,286,000	0	0
Restructuring expense	782,000	0	0
Total operating expense	229,913,000	179,538,000	141,965,000
Loss from operations	(100,285,000)	(32,876,000)	(29,224,000)
Interest income (expense)	19,000	(178,000)	(297,000)
Other income (expense)	139,000	(11,506,000)	(452,000)
Loss before provision for income taxes	(100,127,000)	(44,560,000)	(29,973,000)
Income tax (provision) benefit	(1,227,000)	(810,000)	4,113,000
Net loss	$ (101,354,000)	$ (45,370,000)	$ (25,860,000)
Net loss per share data:
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.68)	$ (0.65)	$ (0.49)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.68)	$ (0.65)	$ (0.49)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	148,754,428	69,308,930	53,005,424
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	148,754,428	69,308,930	53,005,424
Other comprehensive loss:
Foreign currency translation (loss) gain	$ (4,277,000)	$ (1,290,000)	$ 2,245,000
Total comprehensive loss	$ (105,631,000)	$ (46,660,000)	$ (23,615,000)