Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net revenue		$ 547,899	$ 360,793	$ 265,398
Related party revenue		1,284	3,386	6,825
Total net revenue		549,183	364,179	272,223
Operating expenses:
Cost of revenue	[1],[2]	239,251	154,605	42,553
Sales and marketing	[1],[2]	296,934	214,257	106,094
General and administrative expenses	[1],[2]	960,183	526,561	91,669
Research and development	[2]	7,487	4,770	3,672
Depreciation and amortization		2,676	2,553	2,334
Related party expense		10,245	122	331
Total operating expenses		1,516,776	902,868	246,653
(Loss) income from operations		(967,593)	(538,689)	25,570
Other (expense) income, net		16,178	(2,879)	865
Interest (expense) income, net		(110)	477	1,558
(Loss) income before income taxes		(951,525)	(541,091)	27,993
Income tax expense		2,358	0	0
Net (loss) income		(953,883)	(541,091)	27,993
Net (loss) income attributable to non-controlling interests		59,426	(2,718)	36
Net (loss) income attributable to MarketWise, Inc.		(1,013,309)	(538,373)	27,957
Earnings per share
Total stock-based compensation expense		1,063,351	553,600	20,439
Cost of revenue
Earnings per share
Total stock-based compensation expense		171,804	102,736	5,025
Sales and marketing
Earnings per share
Total stock-based compensation expense		48,098	10,567	0
General and administrative
Earnings per share
Total stock-based compensation expense		$ 843,449	$ 440,297	$ 15,414

[1] Included within cost of revenue, sales and marketing, and general and administrative expenses are stock-based compensation expenses as follows (see Note 11):Year Ended December 31,202120202019Cost of revenue$171,804 $102,736 $5,025 Sales and marketing48,098 10,567 — General and administrative843,449 440,297 15,414 Total stock-based compensation expense$1,063,351 $553,600 $20,439 

[2] Cost of revenue, sales and marketing, general and administrative, and research and development expenses are exclusive of depreciation and amortization shown as a separate line item