CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue	$ 252,677	$ 342,554	$ 383,804
Costs and Expenses
Cost of revenue, excluding depreciation and amortization	142,366	194,348	199,015
Sales and marketing	38,989	47,293	53,233
General and administrative	78,026	111,437	108,694
Research and development	11,179	27,100	24,663
Depreciation and amortization	21,941	24,263	22,093
Impairment expense	0	66,464	0
Total costs and expenses	292,501	470,905	407,698
Loss from continuing operations	(39,824)	(128,351)	(23,894)
Other expense, net	(2,990)	(3,076)	(3,974)
Interest expense, net	(16,085)	(15,591)	(2,496)
Change in fair value of warrant liabilities	(11)	4,543	4,740
Change in fair value of derivative liability	180	4,695	26,745
(Loss) income from continuing operations before income taxes	(58,730)	(137,780)	1,121
Income tax provision (benefit)	1,602	2,703	(2,749)
Net (loss) income from continuing operations	(60,332)	(140,483)	3,870
Net (loss) income from discontinued operations, net of tax	(28,990)	(60,843)	22,006
Net (loss) income	(89,322)	(201,326)	25,876
Less: net income attributable to the redeemable noncontrolling interest	0	164	936
Less: net (loss) income attributable to the noncontrolling interests	(743)	(533)	228
Net (loss) income attributable to BuzzFeed, Inc.	(88,579)	(200,957)	24,712
Net loss from continuing operations attributable to holders of Class A, Class B and Class C common stock:
Basic	(59,589)	(140,114)	0
Diluted	$ (59,589)	$ (140,114)	$ (716)
Net loss from continuing operations per Class A, Class B and Class C common share:
Basic (in dollars per share)	$ (0.42)	$ (1.01)	$ 0
Diluted (in dollars per share)	$ (0.42)	$ (1.01)	$ (0.03)
Weighted average common shares outstanding:
Basic (in shares)	143,062	138,148	27,048
Diluted (in shares)	143,062	138,148	28,001