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Revenue Recognition - Summary of Disaggregation of Revenue by Major Source (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue |  | $ 167,684 |  | $ 175,539 | $ 350,643 |  | $ 359,177
University Group [Member] | CTU [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [2] | 100,461 | [1] | 102,035 | 213,609 | [1] | 207,857
University Group [Member] | AIUS [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [4] | 66,920 | [3] | 73,223 | 136,452 | [3] | 150,700
Corporate and Other [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [5],[6] | 303 |  | 281 | 582 |  | 620
Tuition [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [7] | 157,911 |  | 165,846 | 330,289 |  | 339,949
Tuition [Member] | University Group [Member] | CTU [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [7] | 94,828 | [1] | 95,723 | 201,755 | [1] | 195,328
Tuition [Member] | University Group [Member] | AIUS [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [7] | 63,083 | [3] | 70,123 | 128,534 | [3] | 144,621
Technology Fees [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue |  | 7,587 |  | 8,403 | 16,139 |  | 16,681
Technology Fees [Member] | University Group [Member] | CTU [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue |  | 4,658 | [1] | 5,530 | 10,100 | [1] | 11,013
Technology Fees [Member] | University Group [Member] | AIUS [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue |  | 2,929 | [3] | 2,873 | 6,039 | [3] | 5,668
Other Miscellaneous Fees [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [8] | 398 |  | 555 | 795 |  | 1,005
Other Miscellaneous Fees [Member] | University Group [Member] | CTU [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [8] | 263 | [1] | 389 | 445 | [1] | 681
Other Miscellaneous Fees [Member] | University Group [Member] | AIUS [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [8] | 135 | [3] | 166 | 350 | [3] | 324
Tuition and Fees [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue |  | 165,896 |  | 174,804 | 347,223 |  | 357,635
Tuition and Fees [Member] | University Group [Member] | CTU [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue |  | 99,749 | [1] | 101,642 | 212,300 | [1] | 207,022
Tuition and Fees [Member] | University Group [Member] | AIUS [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue |  | 66,147 | [3] | 73,162 | 134,923 | [3] | 150,613
Other [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [9] | 1,788 |  | 735 | 3,420 |  | 1,542
Other [Member] | University Group [Member] | CTU [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [9] | 712 | [1] | 393 | 1,309 | [1] | 835
Other [Member] | University Group [Member] | AIUS [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [9] | 773 | [3] | 61 | 1,529 | [3] | 87
Other [Member] | Corporate and Other [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total revenue | [6],[9] | $ 303 |  | $ 281 | $ 582 |  | $ 620
[1] | CTU includes revenue related to an acquisition completed on September 10, 2021.
[2] | CTU results of operations include the Hippo acquisition commencing on the September 10, 2021 date of acquisition.
[3] | AIUS includes revenue related to an acquisition completed on August 2, 2021.
[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
[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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