Related Party Transactions - Narrative (Details) impression in Millions		1 Months Ended	12 Months Ended
	Mar. 15, 2023 shares	Jun. 30, 2021 USD ($) impression	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Revenue from related parties			$ 252,677,000	$ 342,554,000	$ 383,804,000
Accounts payable			46,378,000	29,329,000
Verizon Ventures LLC | Buzzfeed | Verizon Ventures LLC
Defined Benefit Plan Disclosure [Line Items]
Percentage of common stock owned by related party	5.00%
Verizon Ventures LLC | Common Stock
Defined Benefit Plan Disclosure [Line Items]
Conversion of stock, shares converted (in shares) | shares	6,478,031
Related Party | Verizon Ventures LLC
Defined Benefit Plan Disclosure [Line Items]
Revenue from related parties			700,000	0	0
Related party transaction, amounts of transaction			6,000,000	5,800,000	500,000
NBCUniversal Media, LLC
Defined Benefit Plan Disclosure [Line Items]
Revenue from related parties			3,200,000	5,300,000	2,900,000
NBCUniversal Media, LLC | Related Party
Defined Benefit Plan Disclosure [Line Items]
Related party transaction, amounts of transaction			0	700,000	$ 1,100,000
Outstanding receivable			200,000	2,200,000
Accounts payable			$ 200,000	$ 0
NBCUniversal Media, LLC | Commercial Agreement
Defined Benefit Plan Disclosure [Line Items]
Minimum editorial promotion expense agreed to provide in each year		$ 1,000,000
Impression per year | impression		200
Related party agreement, duration		3 years
Value of NBCU base shares		$ 400,000,000
NBCUniversal Media, LLC | Commercial Agreement | HuffPost
Defined Benefit Plan Disclosure [Line Items]
Minimum editorial promotion expense agreed to provide in each year		$ 1,000,000