The expected forfeitures of the share price used to calculate the fair value of the share options granted.

No definition available.

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- Definition

Description of expeted forfeitures share options oustanding.

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No definition available.

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- Definition

The option life of share options oustanding.

+ References

No definition available.

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- Definition

The amount of an expected dividend used to calculate the fair value of share options.

+ References

No definition available.

+ Details

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- Definition

The expected volatility of the share price used to calculate the fair value of the share options on the reporting date.

+ References

No definition available.

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- Definition

The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options outstanding expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise).

+ References

No definition available.

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- Definition

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2016-01-13
-Paragraph 47
-Subparagraph a
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_47_a_i&doctype=Standard
-URIDate 2016-03-31

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- Definition

The option life of share options granted.

+ References

+ Details

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- Definition

The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

+ References

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The amount of an expected dividend used to calculate the fair value of share options granted.

+ References

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- Definition

The number of share options outstanding in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2016-01-13
-Paragraph 45
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_d&doctype=Standard
-URIDate 2016-03-31

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2016-01-13
-Paragraph 45
-Subparagraph b
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_b_i&doctype=Standard
-URIDate 2016-03-31

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2016-01-13
-Paragraph 45
-Subparagraph b
-Clause vi
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_b_vi&doctype=Standard
-URIDate 2016-03-31

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- Definition

The number of share options granted in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2016-01-13
-Paragraph 45
-Subparagraph b
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_b_ii&doctype=Standard
-URIDate 2016-03-31

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- Definition

The weighted average exercise price of share options exercisable in a share-based payment arrangement. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2016-01-13
-Paragraph 45
-Subparagraph b
-Clause vii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_b_vii&doctype=Standard
-URIDate 2016-03-31

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- Definition

The weighted average exercise price of share options granted in a share-based payment arrangement. [Refer: Weighted average [member]]

+ References

+ Details

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- Definition

The weighted average share price. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2016-01-13
-Paragraph 45
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2016-03-30&anchor=para_45_c&doctype=Standard
-URIDate 2016-03-31

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- Definition

The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]]

+ References

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Share-based compensation plans - Inputs used in the measurement (Details)	12 Months Ended
	Dec. 31, 2017 CAD ($) shares yr	Dec. 31, 2016 CAD ($) shares	Dec. 31, 2015 shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of options granted \| shares	1,373,040	1,273,340
Average strike price	$ 14.7	$ 16.38
Number of options, reporting date \| shares	8,324,666	8,020,311	8,503,238
Average strike price, reporting date	$ 24.95	$ 25.46
Stock Option Plan [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of options granted \| shares	1,373,040
Average strike price	$ 14.7
Expected dividend	$ 0.4
Expected volatility	34.00%
Risk-free interest rate	1.10%
Expected life of option \| yr	4.7
Expected forfeitures	7.00%
Weighted average grant date fair values	$ 3.34
Performance Share Unit Plan [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of options granted \| shares	470,120
Average strike price	$ 0
Expected dividend	$ 0
Expected volatility	36.00%
Risk-free interest rate	0.90%
Expected life of option \| yr	3
Expected forfeitures	9.00%
Weighted average grant date fair values	$ 14.72
Restricted Share Unit Plan [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of options granted \| shares	279,892
Average strike price	$ 14.71
Expected dividend	$ 0
Expected volatility	0.00%
Risk-free interest rate	0.00%
Expected life of option \| yr	0
Expected forfeitures	13.00%
Weighted average grant date fair values	$ 14.71
Phantom Stock Option Plan [member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of options granted \| shares	127,595
Average strike price	$ 14.7
Expected dividend	$ 0.4
Expected volatility	33.00%
Risk-free interest rate	1.10%
Expected life of option \| yr	4.5
Expected forfeitures	7.00%
Weighted average grant date fair values	$ 3.28
Number of options, reporting date \| shares	391,714
Average strike price, reporting date	$ 22.13	$ 24.13
Expected dividend, reporting date	$ 0.08
Expected volatility, reporting date	38.00%
Risk free interest rate, reporting date	1.70%
Expected life of option, reporting date \| yr	3.3
Expected forfeitures, reporting date	7.00%
Weighted average share price, reporting date	$ 1.35