Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (200,002)	$ (191,125)
Indefinite-Lived Intangible Assets [Line Items]
Intangible assets, gross	451,625	451,666
Accumulated Amortization	(200,002)	(191,125)
Intangible assets, net	251,623	260,541
Trade names
Indefinite-Lived Intangible Assets [Line Items]
Trade names	251,623	251,481
Student relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	200,002	200,185
Accumulated Amortization	(200,002)	(191,125)
Net	0	9,060
Indefinite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (200,002)	$ (191,125)