Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (185,765)	$ (180,007)
Indefinite-Lived Intangible Assets [Line Items]
Intangible assets, gross	451,843	456,387
Accumulated Amortization	(185,765)	(180,007)
Intangible assets, net	266,078	276,380
Trade names
Indefinite-Lived Intangible Assets [Line Items]
Trade names	251,409	255,078
Student relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	200,434	201,309
Accumulated Amortization	(185,765)	(180,007)
Net	14,669	21,302
Indefinite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (185,765)	$ (180,007)