v3.26.1
Segment Reporting - Significant Expense Category by Reporting Segment Expenses (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Total operating expenses $ 158,621 $ 161,277
CTU [Member] | Academics and Student Related [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 15,174 14,761
CTU [Member] | Advertising and Marketing [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 13,687 13,251
CTU [Member] | Admissions [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 12,235 12,135
CTU [Member] | Administrative [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses [1] 22,832 21,270
CTU [Member] | Bad Debt [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 4,618 5,874
CTU [Member] | Depreciation and Amortization [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 1,081 1,411
CTU [Member] | All Other Expenses [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses [2] 586 612
AIUS [Member] | Academics and Student Related [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 11,224 11,510
AIUS [Member] | Advertising and Marketing [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 10,864 10,729
AIUS [Member] | Admissions [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 8,960 8,944
AIUS [Member] | Administrative [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses [1] 10,991 10,985
AIUS [Member] | Bad Debt [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 929 1,624
AIUS [Member] | Depreciation and Amortization [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 1,183 1,444
AIUS [Member] | All Other Expenses [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses [2] 1,101 1,107
USAHS [Member] | Academics and Student Related [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 14,196 15,416
USAHS [Member] | Advertising and Marketing [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 3,765 3,978
USAHS [Member] | Admissions [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 1,287 1,387
USAHS [Member] | Administrative [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses [1] 6,016 5,148
USAHS [Member] | Bad Debt [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 199 61
USAHS [Member] | Depreciation and Amortization [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses 7,040 8,870
USAHS [Member] | All Other Expenses [Member]    
Segment Reporting Information [Line Items]    
Total operating expenses [2] $ 4,198 $ 4,653
[1] Administrative expense includes allocations from Corporate and Other.
[2] All other expenses include occupancy cost.