Goodwill and Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Sep. 01, 2021
Business Combination [Line Items]
Goodwill		$ 59,593	$ 59,593	$ 59,593
Impairment of goodwill and intangible assets		$ 0	0
Amortization			$ 3,300	$ 12,200
Impairment Of Intangible Asset Indefinite Lived Excluding Goodwill Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag				impairment charge
Minimum
Business Combination [Line Items]
Useful life		2 years
Maximum
Business Combination [Line Items]
Useful life		6 years
RU Segment
Business Combination [Line Items]
Goodwill		$ 33,000					$ 217,400
Goodwill Impairment Loss Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag	impairment charge
Impairment of goodwill and intangible assets	$ 53,000
Goodwill, impairment loss, tax effect	15,800
Fair value exceeding carrying value		$ 92,900
Fair value exceeding carrying value (in percent)		64.00%
Impairment of intangibles				$ 26,500	$ 26,500
Impairment, Intangible Asset, Statement of Income or Comprehensive Income [Extensible Enumeration]				Impairment of goodwill and intangible assets	Impairment of goodwill and intangible assets
Other Indefinite-Lived Intangible Assets				$ 24,500
Identified intangible assets with finite useful life		$ 35,500
RU Segment | Trade name
Business Combination [Line Items]
Fair value of intangible assets	18,500
Impairment of intangible assets	8,000
RU Segment | Accreditation, licensing, and Title IV
Business Combination [Line Items]
Fair value of intangible assets	6,000
Impairment of intangible assets	$ 3,000			$ 11,000
HCN
Business Combination [Line Items]
Goodwill		26,600				$ 38,600
Fair value exceeding carrying value		$ 27,300
Fair value exceeding carrying value (in percent)		78.00%
Indefinite-lived intangible assets acquired						$ 3,700	$ 51,000
Identified intangible assets with finite useful life		$ 4,400