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Other Assets - Schedule of Other Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]        
Prepaid expenses, net of current portion $ 17,975 $ 18,192    
Equity method investments 14,874 13,879 $ 13,887 $ 15,582
Cloud computing arrangements, net of current portion 9,032 7,507    
Other investments 2,806 3,396    
Tuition receivable, net, non-current 2,539 2,673    
Other 3,954 4,005    
Other assets $ 51,180 $ 49,652