Segment and Geographic Information - Trade Accounts Receivable and Contract Liabilities (Details) - USD ($) $ in Thousands |
Dec. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|
| Segment Reporting Information [Line Items] | ||
| Accounts receivable, net | $ 33,655 | $ 32,636 |
| Total trade accounts receivable | 33,655 | 32,357 |
| Contract liabilities | 48,833 | 8,345 |
| Graduate Program Segment | ||
| Segment Reporting Information [Line Items] | ||
| Accounts receivable, net | 3,454 | 31,110 |
| Unbilled revenue | 12,123 | 265 |
| Contract liabilities | 2,210 | 2,864 |
| Allowance for doubtful accounts | 0 | 0 |
| Alternative Credential Segment | ||
| Segment Reporting Information [Line Items] | ||
| Accounts receivable, net | 12,436 | 982 |
| Unbilled revenue | 5,642 | 0 |
| Contract liabilities | 46,623 | 5,481 |
| Allowance for doubtful accounts | $ 1,300 | $ 257 |
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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer. No definition available.
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