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Goodwill and Other Intangible Assets - Schedule of Net Book Value of Intangible Assets Other Than Goodwill (Detail) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Intangible Assets Net Excluding Goodwill [Line Items] |  |  |
Cost |  | $ 11,800 | $ 1,400
Accumulated Amortization |  | (4,178) | (1,400)
Net Book Value of Amortizable intangible assets, net |  | 7,622 |
Non-amortizable intangible assets |  | 7,900 | 7,900
Intangible assets, net of amortization of $4,178 and $1,400 as of December 31, 2020 and 2019, respectively |  | 15,522 | 7,900
Accreditation Rights [Member] |  |  |
Intangible Assets Net Excluding Goodwill [Line Items] |  |  |
Non-amortizable intangible assets |  | 1,000 | 1,000
Course Curriculum [Member] |  |  |
Intangible Assets Net Excluding Goodwill [Line Items] |  |  |
Cost | [1] | 1,400 |
Accumulated Amortization | [1] | (389) |
Net Book Value of Amortizable intangible assets, net | [1] | 1,011 |
CTU Trade Name [Member] |  |  |
Intangible Assets Net Excluding Goodwill [Line Items] |  |  |
Non-amortizable intangible assets |  | 6,900 | 6,900
Student Relationships [Member] |  |  |
Intangible Assets Net Excluding Goodwill [Line Items] |  |  |
Cost | [1] | 8,000 |
Accumulated Amortization | [1] | (2,222) |
Net Book Value of Amortizable intangible assets, net | [1] | 5,778 |
Trade Name [Member] |  |  |
Intangible Assets Net Excluding Goodwill [Line Items] |  |  |
Cost |  | 2,400 | 1,400
Accumulated Amortization |  | (1,567) | $ (1,400)
Net Book Value of Amortizable intangible assets, net |  | $ 833 |
[1] | See Note 3 “Business Acquisition” for further details on acquired intangible assets.

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