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Held for Sale, Discontinued Operations, Disposals, and Licenses - Narrative (Details) £ in Millions								3 Months Ended		4 Months Ended	9 Months Ended
	Jun. 21, 2024 USD ($)	Jun. 13, 2024 USD ($)	Apr. 01, 2024 GBP (£)	Mar. 28, 2024	Mar. 07, 2024 USD ($)	Feb. 28, 2024	Feb. 21, 2024 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Letters of credit outstanding, amount							$ 15,500,000	$ 0		$ 0	$ 0		$ 15,500,000	$ 15,500,000	$ 15,500,000
Early termination fee											500,000	$ 0
One-time license fee received								4,410,000	$ 3,926,000		12,932,000	11,778,000
Independent Digital News and Media Limited
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
License agreement, term (in years)				5 years
Net sales revenue share (as a percent)			25.00%
Minimum \| Independent Digital News and Media Limited
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
License fees receivable			£ 0.3					300,000		300,000	300,000
Maximum \| Independent Digital News and Media Limited
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
License fees receivable			£ 0.5					600,000		600,000	600,000
Commerce Media Holdings, LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
One-time license fee received							2,800,000
Transition services agreement, amount collected								1,500,000			1,500,000
Revolving Credit Facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Repayments of long-term debt							33,800,000
Accrued and unpaid interest payment							700,000
Early termination fee							500,000
Letter of Credit
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Letters of credit outstanding, amount							15,500,000
Standby letter of credit fee							500,000
Convertible Notes
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Repayments of long-term debt	$ 300,000				$ 30,900,000		30,900,000
Percentage of net proceeds from future asset sales		0.95				0.95
Principal outstanding							$ 150,000,000	118,767,000		118,767,000	118,767,000				150,000,000
Required repayment percentage							0.206
Unamortized discount and debt issuance costs, derecognized (as a percent)					20.60%		20.60%
Discontinued Operations, Held-for-Sale or Disposed of by Sale \| Complex Networks, Excluding the First we Feast Brand
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses							$ 108,600,000
Income tax provision / (benefit)								(166,000)	0		1,337,000	0
Loss on partial debt extinguishment					$ 4,900,000		$ 4,900,000	0	0		(4,919,000)	0
Valuation allowance															$ 9,462,000
Gain on remeasurement of classification to held for sale								0	0		854,000	0
Loss on disposal								$ 0	$ 1,883,000		$ 8,587,000	$ 14,109,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| BringMe
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses										$ 400,000
Percentage of assets sold		100.00%
Disposal group, including discontinued operation, consideration		$ 1,300,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| BringMe \| Convertible Notes
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Repayments of long-term debt	$ 300,000