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Goodwill and Other Intangibles - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 31, 2016 | Feb. 28, 2017 | Feb. 29, 2016 | May 31, 2016
Goodwill and Other Intangibles (Details) [Line Items] |  |  |  |
Amortizable intangible assets acquired |  | $ 0.2 | $ 2.4 | $ 2.4
Amortization expense |  | $ 1.8 | $ 1.7 | 2.2
Useful life |  | 3 years 11 months |  |
U.S. Based Book Fair Business |  |  |  |
Goodwill and Other Intangibles (Details) [Line Items] |  |  |  |
Amortizable intangible assets acquired | $ 0.2 |  |  | 0.5
U.K. Based Book Fair Business |  |  |  |
Goodwill and Other Intangibles (Details) [Line Items] |  |  |  |
Amortizable intangible assets acquired |  |  |  | $ 1.9

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