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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, 2024
Dec. 31, 2023
Intangible Assets Net Excluding Goodwill [Line Items]    
Cost $ 115,860 $ 62,760
Accumulated Amortization (27,725) (23,612)
Accumulated Impairments (10,829) (10,829)
Net Book Value of Amortizable intangible assets, net 77,306 28,319
Non-amortizable intangible assets 17,700 7,900
Intangible assets, net of amortization of $27,725 and $23,612 as of December 31, 2024 and 2023, respectively 95,006 36,219
Accreditation Rights [Member]    
Intangible Assets Net Excluding Goodwill [Line Items]    
Cost 25,000  
Accumulated Amortization (174)  
Net Book Value of Amortizable intangible assets, net 24,826  
Non-amortizable intangible assets 1,000 1,000
Course Curriculum    
Intangible Assets Net Excluding Goodwill [Line Items]    
Cost 18,290 2,790
Accumulated Amortization (2,418) (1,817)
Net Book Value of Amortizable intangible assets, net 15,872 973
Customer Relationship    
Intangible Assets Net Excluding Goodwill [Line Items]    
Cost 52,090 38,090
Accumulated Amortization (19,068) (15,502)
Accumulated Impairments (111) (111)
Net Book Value of Amortizable intangible assets, net 32,911 22,477
Developed Technology Rights    
Intangible Assets Net Excluding Goodwill [Line Items]    
Cost 8,820 8,820
Accumulated Amortization (2,980) (2,490)
Accumulated Impairments (5,513) (5,513)
Net Book Value of Amortizable intangible assets, net 327 817
Trade Names    
Intangible Assets Net Excluding Goodwill [Line Items]    
Cost 11,660 13,060
Accumulated Amortization (3,085) (3,803)
Accumulated Impairments (5,205) (5,205)
Net Book Value of Amortizable intangible assets, net 3,370 4,052
Non-amortizable intangible assets $ 16,700 $ 6,900