Revenue - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Accounts and notes receivable	$ 173,571	$ 133,105
Deferred revenue and student deposits, current	69,351	51,264
Capitalized contract cost	11,400	8,800
Capitalized contract cost, accumulated amortization	6,900	4,900
Amortization of capitalized costs	$ 2,200	$ 1,700
Minimum
Disaggregation of Revenue [Line Items]
Contract cost, amortization period	2 years
Maximum
Disaggregation of Revenue [Line Items]
Contract cost, amortization period	4 years
Commission and Bonuses
Disaggregation of Revenue [Line Items]
Remaining performance obligations recognition period	one year or less
Incremental Cost of Obtaining a Contract With Students
Disaggregation of Revenue [Line Items]
Remaining performance obligations recognition period	one year or less