Other Assets - Schedule of Other Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses, net of current portion	$ 16,439	$ 16,679
Equity method investments	15,889	16,068	$ 14,874	$ 13,879
Cloud computing arrangements, net of current portion	12,527	12,806
Other investments	2,806	2,806
Tuition receivable, net, non-current	2,470	2,516
Other	4,849	3,544
Other assets	$ 54,980	$ 54,419