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Significant Accounting Policies - Schedule of Tuition Receivable and Allowance for Credit Losses (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Accounting Policies [Line Items] |  |
Tuition receivable | $ 123,357 | $ 110,066
Allowance for credit losses | (47,255) | (47,113)
Tuition receivable, net | 76,102 | 62,953
Tuition receivable, noncurrent | 2,516 | 2,673
Other assets |  |
Accounting Policies [Line Items] |  |
Tuition receivable, noncurrent | $ 2,500 | $ 2,700

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