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Revenue Recognition - Summary of Disaggregation of Revenue by Major Source (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue |  | $ 168,420 |  | $ 173,998 |  | $ 519,063 |  | $ 533,175 |
University Group [Member] | CTU [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue |  | 97,562 | [1] | 104,788 | [2] | 311,171 | [1],[2] | 312,645 | [2]
University Group [Member] | AIUS [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue |  | 70,582 | [3] | 68,948 | [4] | 207,034 | [3],[4] | 219,648 | [4]
Corporate and Other [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue | [5] | 276 |  | 262 | [6] | 858 | [6] | 882 | [6]
Tuition [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue | [7] | 158,386 |  | 163,831 |  | 488,675 |  | 503,780 |
Tuition [Member] | University Group [Member] | CTU [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue | [7] | 91,765 | [1] | 98,730 |  | 293,520 | [1] | 294,058 |
Tuition [Member] | University Group [Member] | AIUS [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue | [7] | 66,621 | [3] | 65,101 |  | 195,155 | [3] | 209,722 |
Technology Fees [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue |  | 7,486 |  | 8,301 |  | 23,625 |  | 24,982 |
Technology Fees [Member] | University Group [Member] | CTU [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue |  | 4,630 | [1] | 5,339 |  | 14,730 | [1] | 16,352 |
Technology Fees [Member] | University Group [Member] | AIUS [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue |  | 2,856 | [3] | 2,962 |  | 8,895 | [3] | 8,630 |
Other Miscellaneous Fees [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue | [8] | 565 |  | 463 |  | 1,360 |  | 1,468 |
Other Miscellaneous Fees [Member] | University Group [Member] | CTU [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue | [8] | 196 | [1] | 278 |  | 641 | [1] | 959 |
Other Miscellaneous Fees [Member] | University Group [Member] | AIUS [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue | [8] | 369 | [3] | 185 |  | 719 | [3] | 509 |
Tuition and Fees [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue |  | 166,437 |  | 172,595 |  | 513,660 |  | 530,230 |
Tuition and Fees [Member] | University Group [Member] | CTU [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue |  | 96,591 | [1] | 104,347 |  | 308,891 | [1] | 311,369 |
Tuition and Fees [Member] | University Group [Member] | AIUS [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue |  | 69,846 | [3] | 68,248 |  | 204,769 | [3] | 218,861 |
Other [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue | [9] | 1,983 |  | 1,403 |  | 5,403 |  | 2,945 |
Other [Member] | University Group [Member] | CTU [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue | [9] | 971 | [1] | 441 |  | 2,280 | [1] | 1,276 |
Other [Member] | University Group [Member] | AIUS [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue | [9] | 736 | [3] | 700 |  | 2,265 | [3] | 787 |
Other [Member] | Corporate and Other [Member] |  |  |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |  |  |
Total revenue | [5],[9] | $ 276 |  | $ 262 |  | $ 858 |  | $ 882 |
[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 relat ed to an acquisition completed on July 1, 2022 and an acquisition completed on August 2, 2021.
[4] | AIUS results of operations include the CalSouthern acquisition commencing on the July 1, 2022 date of acquisition and the DigitalCrafts acquisition commencing on the August 2, 2021 date of acquisition.
[5] | Revenue recorded within Corporate and Other relates to miscellaneous non-student related revenue.
[6] | 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.
[7] | Tuition includes revenue earned for all 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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