Shares Shares - Share Purchase Program (Details) (CAD) In Thousands, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended
Oct. 25, 2013	Dec. 31, 2013
Equity, Class of Treasury Stock [Line Items]
Retired through Share Purchase Program (shares)		1,800,000
Increase (decrease) as a result of the retirement of shares		16,133
Stock purchase program
Equity, Class of Treasury Stock [Line Items]
Retired through Share Purchase Program (shares)	1,800,000
Percentage of issued and outstanding common shares purchased under Purchase Program		5.00%
Shares retired during period		1,800,000
Common stock \| Stock purchase program
Equity, Class of Treasury Stock [Line Items]
Increase (decrease) as a result of the retirement of shares		(16,133)
Additional paid in capital \| Stock purchase program
Equity, Class of Treasury Stock [Line Items]
Increase (decrease) as a result of the retirement of shares		4,393

Stock Repurchase Program, Common Voting Shares Purchased, Percentage

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- Definition

Stock Repurchase Program, Number of Shares to be Purchased and Retired

+ References

No definition available.

+ Details

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- Definition

Number of shares that have been repurchased and retired during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

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- Definition

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

+ References

+ Details

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