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Discontinued Operations - Narrative (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Nov. 30, 2015 USD ($) | Nov. 30, 2014 USD ($) | Nov. 30, 2015 USD ($) | Nov. 30, 2014 USD ($) | May. 31, 2015 USD ($) transaction buyer
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Proceeds from sale of business interest in affiliates | $ 578,257 |  | $ 578,257 | $ 0 |
Equity method investments | 15,500 |  | 15,500 |  | $ 225,700
Gain on disposal of business |  |  | 15,786 | 34,137 |
Proceeds from Storage Transactions, net of cash contributed |  |  | 35,338 | 153,996 |
Discontinued Operations |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Gain on disposal of business | 10,943 | $ 34,137 | $ 15,786 | $ 34,137 |
Shred-it | Discontinued Operations |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Estimated additional consideration subject to holdback provisions (up to) | 34,000 |  |  |  |
Equity method investments |  |  |  |  | $ 210,100
Amortization period of basis difference |  |  | 9 years |  |
Loss on investment in Shred-it, net of tax |  |  | $ 24,300 |  |
Amortization of basis difference |  |  | 4,800 |  |
Gain on disposal of business | 3,900 |  |  |  |
Storage Business | Discontinued Operations |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Number of transactions involved in sale of business | transaction |  |  |  |  | 3
Number of buyers involved in sale of business | buyer |  |  |  |  | 3
Gain on disposal of business | $ 10,900 |  |  |  |
Storage Real Estate Assets | Discontinued Operations |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Gain on disposal of business |  |  | 4,800 |  |
Proceeds from Storage Transactions, net of cash contributed |  |  | $ 24,400 |  |

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