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Revenue Recognition - Schedule of Previously Reported Balances, Adjustment and Current Reported Balances (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Student receivables, net of allowance for doubtful accounts, current	$ 28,751		$ 18,875
Deferred revenue	$ 32,351	$ 29,560	$ 22,897
ASC Topic 606 [Member]
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Student receivables, net of allowance for doubtful accounts, current		25,538
Deferred revenue		29,560
Impact of Modified Retrospective Adoption of ASC 606 [Member] | ASC Topic 606 [Member]
Revenue Initial Application Period Cumulative Effect Transition [Line Items]
Student receivables, net of allowance for doubtful accounts, current		6,663
Deferred revenue		$ 6,663

X

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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+ References

No definition available.

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