Acquisitions and Dispositions - Schedule of Purchase Price Allocation for the Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 03, 2021	Feb. 16, 2021
HuffPost
Business Acquisitions [Line Items]
Cash and cash equivalents	$ 5,513
Accounts receivable	3,383
Prepaid and other current assets	611
Deferred tax assets	131
Property and equipment	620
Intangible assets	19,500
Goodwill	5,490
Accounts payable	(1,410)
Accrued expenses	(4,249)
Deferred tax liabilities	(3,829)
Other liabilities	(63)
Noncontrolling interests	(2,123)
Total consideration for HuffPost	23,574
HuffPost | Preliminary
Business Acquisitions [Line Items]
Cash and cash equivalents			$ 5,513
Accounts receivable			3,383
Prepaid and other current assets			611
Deferred tax assets			116
Property and equipment			620
Intangible assets			19,500
Goodwill			5,927
Accounts payable			(1,410)
Accrued expenses			(4,249)
Deferred tax liabilities			(4,251)
Other liabilities			(63)
Noncontrolling interests			(2,123)
Total consideration for HuffPost			$ 23,574
HuffPost | Measurement Period Adjustments
Business Acquisitions [Line Items]
Cash and cash equivalents	0
Accounts receivable	0
Prepaid and other current assets	0
Deferred tax assets	15
Property and equipment	0
Intangible assets	0
Goodwill	(437)
Accounts payable	0
Accrued expenses	0
Deferred tax liabilities	422
Other liabilities	0
Noncontrolling interests	0
Total consideration for HuffPost	$ 0
C Acquisition
Business Acquisitions [Line Items]
Cash and cash equivalents		$ 2,881
Accounts receivable		22,592
Prepaid and other current assets		18,108
Property and equipment		317
Intangible assets		119,100
Goodwill		188,482
Accounts payable		(2,661)
Accrued expenses		(13,122)
Accrued compensation		(12,518)
Deferred revenue		(5,903)
Deferred tax liabilities		(21,642)
Other liabilities		(1,468)
Total consideration for HuffPost		294,166
C Acquisition | Preliminary
Business Acquisitions [Line Items]
Cash and cash equivalents		2,881
Accounts receivable		22,581
Prepaid and other current assets		17,827
Property and equipment		332
Intangible assets		119,100
Goodwill		189,391
Accounts payable		(2,661)
Accrued expenses		(12,319)
Accrued compensation		(12,867)
Deferred revenue		(5,855)
Deferred tax liabilities		(22,776)
Other liabilities		(1,468)
Total consideration for HuffPost		294,166
C Acquisition | Measurement Period Adjustments
Business Acquisitions [Line Items]
Cash and cash equivalents		0
Accounts receivable		11
Prepaid and other current assets		281
Property and equipment		(15)
Intangible assets		0
Goodwill		(909)
Accounts payable		0
Accrued expenses		(803)
Accrued compensation		349
Deferred revenue		(48)
Deferred tax liabilities		1,134
Other liabilities		0
Total consideration for HuffPost		$ 0