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.

No definition available.

+ Details

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- Definition

The exercise price of outstanding share options.

+ References

+ Details

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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 2017-01-01
-Paragraph 45
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_45_d&doctype=Standard
-URIDate 2017-03-09

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2017-01-01
-Paragraph 45
-Subparagraph b
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_45_b_i&doctype=Standard
-URIDate 2017-03-09

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2017-01-01
-Paragraph 45
-Subparagraph b
-Clause vi
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_45_b_vi&doctype=Standard
-URIDate 2017-03-09

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

The weighted average remaining contractual life of outstanding share options. [Refer: Weighted average [member]]

+ References

+ Details

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- Details

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- Details

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- Details

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Equity - Summary of Information Relating to Share Options Outstanding (Detail)	Dec. 31, 2017 CAD mo	Dec. 31, 2016	Dec. 31, 2015
Disclosure of range of exercise prices of outstanding share options [line items]
Outstanding share options	22,068,000	22,854,000	15,929,000
Weighted average remaining life of outstanding options \| mo	81
Bottom of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 4.15
Top of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 58.80
$ 4.15-$12.35 [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Outstanding share options	8,018,000
Weighted average remaining life of outstanding options \| mo	91
$ 4.15-$12.35 [member] \| Bottom of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 4.15
$ 4.15-$12.35 [member] \| Top of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 12.35
$12.36-$20.14 [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Outstanding share options	5,083,000
Weighted average remaining life of outstanding options \| mo	86
$12.36-$20.14 [member] \| Bottom of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 12.36
$12.36-$20.14 [member] \| Top of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 20.14
$20.15-$26.79 [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Outstanding share options	2,734,000
Weighted average remaining life of outstanding options \| mo	74
$20.15-$26.79 [member] \| Bottom of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 20.15
$20.15-$26.79 [member] \| Top of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 26.79
$26.80-$36.85 [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Outstanding share options	4,527,000
Weighted average remaining life of outstanding options \| mo	77
$26.80-$36.85 [member] \| Bottom of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 26.80
$26.80-$36.85 [member] \| Top of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 36.85
$36.86-$58.80 [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Outstanding share options	1,706,000
Weighted average remaining life of outstanding options \| mo	45
$36.86-$58.80 [member] \| Bottom of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 36.86
$36.86-$58.80 [member] \| Top of range [member]
Disclosure of range of exercise prices of outstanding share options [line items]
Exercise price range	CAD 58.80