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Revenue Recognition - Narrative (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2023 USD ($) term course
Graduation Fund [Line Items] |
Number of free courses | 1
Number of successfully completed courses | 3
Consecutive terms of non attendance in which Graduation Fund credits will be lost | term | 1
Expected collection period of tuition receivable | 12 months
Graduation fund estimated to be redeemed | $ | $ 19.4
Minimum |
Graduation Fund [Line Items] |
Expected collection period of tuition receivable, noncurrent | 2 years
Minimum | Australia / New Zealand |
Graduation Fund [Line Items] |
Deferred acquisition costs, amortization period | 1 year
Maximum |
Graduation Fund [Line Items] |
Expected collection period of tuition receivable, noncurrent | 4 years
Maximum | Australia / New Zealand |
Graduation Fund [Line Items] |
Deferred acquisition costs, amortization period | 2 years

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