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Segment Reporting - Summary Financial Information by Reporting Segment (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified | 6 Months Ended | 3 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 Career Colleges [Member] | Jun. 30, 2014 Culinary Arts [Member] | Jun. 30, 2013 Culinary Arts [Member]
Segment Reporting Information [Line Items] |  |  |  |
Preliminary settlement legal matters | $ 2.2 | $ 8.3 |  |
Goodwill and assets impairment charges |  | $ 1.7 | $ 7.4 | $ 2.3

X
- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. + References No definition available. + Details
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Period Type: | duration

X
- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
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Namespace Prefix: | us-gaap_
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