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Discontinued Operations - Schedule of Discontinued Operations (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Aug. 31, 2015 | Aug. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Income tax expense |  | $ 3,419 | $ (2,991)
Gain on sale of Storage Assets |  | 4,843 | 0
Loss on investment in Shred-it Partnership |  | (14,516) | 0
Gain on the deconsolidation of Shredding |  | 0 | 6,619
Net (loss) income from discontinued operations |  | (6,017) | 4,203
Discontinued Operations |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Revenue |  | 0 | 20,785
Income before income taxes |  | 237 | 575
Income tax expense |  | (85) | (240)
Gain on sale of Storage Assets |  | 4,843 | 0
Loss on investment in Shred-it Partnership |  | (14,516) | 0
Gain on the deconsolidation of Shredding | [1] | 0 | 6,619
Income tax benefit (expense) on (loss) gain |  | 3,504 | (2,751)
Net (loss) income from discontinued operations |  | $ (6,017) | $ 4,203
[1] | Results for the three months ended August 31, 2014 related to the gain on the deconsolidation of Shredding were previously presented in continuing operations and were reclassified to discontinued operations as previously discussed.

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- Definition The amount of the gain (loss) recognized by the parent and included in its attributable portion of net income for the period due to deconsolidation of a subsidiary or derecognition of a group of assets. The gain (loss) recognized and included in the net income attributable to the parent for the period is generally computed as the difference between: (a) the aggregate of: (1) the fair value of any consideration received; (2) the fair value of any retained noncontrolling investment in the former subsidiary at the date the subsidiary was deconsolidated; and (3) the carrying amount of any noncontrolling interest in the former subsidiary (including any accumulated other comprehensive income attributable to the noncontrolling interest) at the date the subsidiary was deconsolidated and (b) the carrying amount of the former subsidiary's assets and liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4582445-111684 + Details
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