Revenue - Narrative (Details) - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Disaggregation of Revenue [Line Items]
Contract assets	$ 0	$ 0
Deferred revenue	25,193,000	23,016,000
Courses in Progress
Disaggregation of Revenue [Line Items]
Future revenue	16,600,000	15,000,000.0
Future Courses
Disaggregation of Revenue [Line Items]
Future revenue	$ 8,600,000	$ 8,000,000.0