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Related Party Transactions - Narrative (Details) - USD ($)		3 Months Ended		6 Months Ended
	Mar. 15, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Revenue from related parties		$ 77,901,000	$ 106,760,000	$ 145,054,000	$ 198,318,000
Accounts receivable, related party		70,855,000		70,855,000		$ 116,460,000
Accounts payable		37,294,000		37,294,000		29,329,000
Related Party
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction		0	200,000
Related Party \| NBCUniversal Media, LLC
Related Party Transaction [Line Items]
Revenue from related parties		200,000	1,700,000	700,000	2,200,000
Related party transaction, amounts of transaction				0	400,000
Accounts payable		200,000		200,000		0
Other Receivables, Net, Current		200,000		200,000		$ 2,200,000
Related Party \| Verizon Ventures LLC
Related Party Transaction [Line Items]
Revenue from related parties		0		0
Related party transaction, amounts of transaction		$ 1,500,000	$ 1,500,000	$ 3,000,000	$ 3,000,000
Verizon Ventures LLC \| Buzzfeed \| Verizon Ventures LLC
Related Party Transaction [Line Items]
Percentage of common stock owned by related party	5.00%
Common Stock \| Verizon Ventures LLC
Related Party Transaction [Line Items]
Conversion of stock, shares converted (in shares)	6,478,031