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Business Acquisition - Summary of Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024 | Dec. 02, 2024
--- | --- | --- | ---
Assets: |  |  |
Goodwill | $ 258,191 | $ 258,012 |
USAHS [Member] |  |  |
Assets: |  |  |
Student and other receivables |  |  | $ 1,771
Prepaid assets |  |  | 4,727
Property, plant and equipment |  |  | 78,800
ROU assets |  |  | 53,271
Deferred tax asset, net |  |  | 47,626
Other assets |  |  | 977
Goodwill |  |  | 17,029
Total assets acquired |  |  | 268,501
Liabilities: |  |  |
Accounts payable and other accrued liabilities |  |  | 9,269
Deferred revenue |  |  | 10,137
Lease liabilities |  |  | 55,625
Construction financing |  |  | 56,500
Total liabilities assumed |  |  | 131,531
Net assets acquired |  |  | 136,970
Customer Relationships [Member] | USAHS [Member] |  |  |
Assets: |  |  |
Fair value of intangible assets |  |  | 14,000
Course Curriculum [Member] | USAHS [Member] |  |  |
Assets: |  |  |
Fair value of intangible assets |  |  | 15,500
Accreditation Rights [Member] | USAHS [Member] |  |  |
Assets: |  |  |
Fair value of intangible assets |  |  | 25,000
Trade Name [Member] | USAHS [Member] |  |  |
Assets: |  |  |
Fair value of intangible assets |  |  | $ 9,800

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