XML 78 R56.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Student Receivables - Changes in Current and Non-Current Receivables Allowance (Parenthetical) (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Receivables [Abstract] |  |  |
Recoveries of amounts previously written off | $ 6.7 | $ 8.5 | $ 7.2

X
- Definition The cash inflow from loans reinstated and recovered that were previously deemed uncollectible. + References No definition available. + Details
Name: | us-gaap_ProceedsFromRecoveriesOfLoanPreviouslyChargedOff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration