Goodwill and Other Intangible Assets - Schedule of Net Book Value of Intangible Assets Other Than Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Intangible Assets Net Excluding Goodwill [Line Items]
Cost	$ 62,760	$ 32,970
Accumulated Amortization	(15,981)	(8,662)
Impairments	(1,115)
Net Book Value of Amortizable intangible assets, net	45,664	24,308
Non-amortizable intangible assets	7,900	7,900
Intangible assets, net of amortization of $15,981 and $8,662 as of December 31, 2022 and 2021, respectively	53,564	32,208
Accreditation Rights [Member]
Intangible Assets Net Excluding Goodwill [Line Items]
Non-amortizable intangible assets	1,000	1,000
Course Curriculum
Intangible Assets Net Excluding Goodwill [Line Items]
Cost	2,790	1,400
Accumulated Amortization	(1,461)	(856)
Net Book Value of Amortizable intangible assets, net	1,329	544
CTU Trade Name [Member]
Intangible Assets Net Excluding Goodwill [Line Items]
Non-amortizable intangible assets	6,900	6,900
Customer Relationship
Intangible Assets Net Excluding Goodwill [Line Items]
Cost	38,090	22,300
Accumulated Amortization	(10,815)	(5,588)
Impairments	(111)
Net Book Value of Amortizable intangible assets, net	27,164	16,712
Developed Technology Rights
Intangible Assets Net Excluding Goodwill [Line Items]
Cost	8,820	2,790
Accumulated Amortization	(1,022)	(278)
Impairments	(461)
Net Book Value of Amortizable intangible assets, net	7,337	2,512
Trade Names
Intangible Assets Net Excluding Goodwill [Line Items]
Cost	13,060	6,480
Accumulated Amortization	(2,683)	(1,940)
Impairments	(543)
Net Book Value of Amortizable intangible assets, net	$ 9,834	$ 4,540