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Investment and Other Income - Additional Information (Detail) - Subsequent Event - General Aviation Business CAD in Millions	Nov. 01, 2016 CAD
Investment And Other Income [Line Items]
Sale of business	CAD 177
Net book value business sold	CAD 18

X

- Definition

Book Value of Divested Business

+ References

No definition available.

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Balance Type:	debit
Period Type:	duration

X

- Definition

Investment And Other Income [Line Items]

+ References

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X

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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