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Business Combinations - Narrative (Details) student in Thousands, $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Nov. 03, 2020 USD ($) industry student | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Business Acquisition [Line Items] |  |  |  |
Goodwill |  | $ 1,251,277 | $ 1,285,864 | $ 1,318,526
Measurement period adjustment, goodwill |  | $ 87 | 262 |
Torrens University and Related Assets in Australia and New Zealand (ANZ) |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Number of students | student | 19 |  |  |
Number of industries | industry | 5 |  |  |
Purchase price paid in cash at closing | $ 658,400 |  |  |
Value of business acquisition agreement | 642,700 |  |  |
Goodwill | 546,315 |  |  |
Transaction costs | $ 8,100 |  |  |
Measurement period adjustment, property and equipment |  |  | 300 |
Measurement period adjustment, goodwill |  |  | $ 300 |

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