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New Accounting Standards (Narrative) (Details) | 1 Months Ended |  |
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Aug. 31, 2015 | Feb. 29, 2016 classification | Jan. 31, 2016 provision
New Accounting Standards [Abstract] |  |  |
Number of classifications | classification |  | 2 |
Number of provisions | provision |  |  | 1
Period of deferral of effective date, in years | 1 year |  |

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