Goodwill and Acquired Intangible Assets - Schedule of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Cost Basis	$ 18,280	$ 17,700	$ 18,280	$ 17,700
Accumulated Amortization	(5,672)	(10,271)	(5,672)	(10,271)
Net	12,608	$ 7,429	12,608	$ 7,429
Nitro
Finite-Lived Intangible Assets [Line Items]
Weighted average useful life of acquired intangible assets				4 years 7 months 6 days
Scholly, Inc.
Finite-Lived Intangible Assets [Line Items]
Weighted average useful life of acquired intangible assets				4 years
Tradename and trademarks
Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)		4 years		4 years
Cost Basis	6,040	$ 6,040	6,040	$ 6,040
Accumulated Amortization	(629)	(2,139)	(629)	(2,139)
Net	5,411	3,901	5,411	3,901
Tradename and trademarks | Nitro
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets	56,000		56,000
Tradename and trademarks | Scholly, Inc.
Finite-Lived Intangible Assets [Line Items]
Net		$ 4,000		$ 4,000
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)		4 years 7 months 6 days		4 years 7 months 6 days
Cost Basis	8,920	$ 8,920	8,920	$ 8,920
Accumulated Amortization	(4,013)	(6,465)	(4,013)	(6,465)
Net	4,907	2,455	4,907	2,455
Customer relationships | Scholly, Inc.
Finite-Lived Intangible Assets [Line Items]
Net		$ 1,000		$ 1,000
Developed technology
Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)		3 years 6 months		3 years 6 months
Cost Basis	2,590	$ 2,590	2,590	$ 2,590
Accumulated Amortization	(908)	(1,661)	(908)	(1,661)
Net	1,682	929	1,682	929
Developed technology | Scholly, Inc.
Finite-Lived Intangible Assets [Line Items]
Net		1,000		1,000
Partner relationship
Finite-Lived Intangible Assets [Line Items]
Cost Basis	730	0	730	0
Accumulated Amortization	(122)	0	(122)	0
Net	608	0	608	$ 0
Partner relationship | Scholly, Inc.
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets		$ 1,000
Sallie.com domain
Finite-Lived Intangible Assets [Line Items]
Useful Life (in years)		4 years		4 years
Cost Basis	0	$ 150	0	$ 150
Accumulated Amortization	0	(6)	0	(6)
Net	$ 0	$ 144	$ 0	$ 144