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Employee Costs - Schedule of Employee Benefits Cost (Detail) - CAD CAD in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Disclosure of employee costs [abstract]
Wages, salaries, and benefits	CAD 2,444.8	CAD 2,211.7
Pension costs	70.2	58.9
Share-based compensation	9.5	8.9
Total employee costs	2,524.5	2,279.5
Direct labor	1,589.4	1,422.1
Indirect labor	935.1	857.4
Total employee costs	CAD 2,524.5	CAD 2,279.5

X

- Definition

The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment.

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X

- Definition

The amount of expense from share-based payment transactions with employees.

+ References

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X

- Definition

The amount of expense from employee benefits (other than termination benefits) that are expected to be settled wholly within twelve months after the end of the annual reporting period in which the employees render the related services.

+ References

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X

- Definition

Direct labor costs.

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No definition available.

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- Definition

Disclosure of employee costs.

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No definition available.

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- Definition

Employee pension costs.

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No definition available.

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X

- Definition

Indirect labor costs.

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No definition available.

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