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Revenue Recognition - Summary of Disaggregation of Revenue by Major Source (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | $ 182,959 |  | $ 183,638
University Group [Member] | CTU [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [2] | 113,148 | [1] | 105,822
University Group [Member] | AIUS [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [4] | 69,532 | [3] | 77,477
Corporate and Other [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [5],[6] | 279 |  | 339
Tuition [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [7] | 172,378 |  | 174,103
Tuition [Member] | University Group [Member] | CTU [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [7] | 106,927 | [1] | 99,605
Tuition [Member] | University Group [Member] | AIUS [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [7] | 65,451 | [3] | 74,498
Technology Fees [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 8,552 |  | 8,278
Technology Fees [Member] | University Group [Member] | CTU [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 5,442 | [1] | 5,483
Technology Fees [Member] | University Group [Member] | AIUS [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 3,110 | [3] | 2,795
Other Miscellaneous Fees [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [8] | 397 |  | 450
Other Miscellaneous Fees [Member] | University Group [Member] | CTU [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [8] | 182 | [1] | 292
Other Miscellaneous Fees [Member] | University Group [Member] | AIUS [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [8] | 215 | [3] | 158
Tuition and Fees [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 181,327 |  | 182,831
Tuition and Fees [Member] | University Group [Member] | CTU [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 112,551 | [1] | 105,380
Tuition and Fees [Member] | University Group [Member] | AIUS [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue |  | 68,776 | [3] | 77,451
Other [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [9] | 1,632 |  | 807
Other [Member] | University Group [Member] | CTU [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [9] | 597 | [1] | 442
Other [Member] | University Group [Member] | AIUS [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [9] | 756 | [3] | 26
Other [Member] | Corporate and Other [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total revenue | [6],[9] | $ 279 |  | $ 339
[1] | CTU includes revenue related to the Hippo acquisition commencing on the September 10, 2021 date of acquisition.
[2] | CTU results of operations include the Hippo acquisition commencing on the September 10, 2021 date of acquisition.
[3] | AIUS includes revenue related to the DigitalCrafts acquisition commencing on the August 2, 2021 date of acquisition.
[4] | AIUS results of operations include the DigitalCrafts acquisition commencing on the August 2, 2021 date of acquisition.
[5] | Corporate and Other includes results of operations and total assets for closed campuses. Revenue recorded within Corporate and Other relates to miscellaneous non-student related revenue.
[6] | Revenue recorded within Corporate and Other relates to miscellaneous non-student related revenue.
[7] | Tuition includes revenue earned for degree-granting programs as well as revenue earned for non-degree professional development and continuing education offerings related to the DigitalCrafts and Hippo acquisitions from the date of acquisitions
[8] | Other miscellaneous fees primarily include graduation fees.
[9] | Other revenue primarily includes contract training revenue and miscellaneous non-student related revenue.

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