Significant Accounting Policies - Schedule of Tuition Receivable and Allowance for Credit Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Accounting Policies [Abstract]
Tuition receivable	$ 156,068	$ 123,357
Allowance for credit losses	(50,273)	(47,255)
Tuition receivable, net	105,795	76,102
Tuition receivable, noncurrent	$ 7,217	$ 2,516

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Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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