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Other Assets - Schedule of Other Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
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Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |  |
Prepaid expenses, net of current portion | $ 18,192 | $ 19,852 |
Equity method investments | 13,879 | 15,582 | $ 15,795
Cloud computing arrangements | 7,507 | 5,957 |
Other investments | 3,396 | 3,576 |
Tuition receivable, net, non-current | 2,673 | 2,466 |
Other | 4,005 | 4,864 |
Other assets | $ 49,652 | $ 52,297 |

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