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Fair Value Measurements - Summary of Fair Value Hierarchy for Liabilities (Detail) - Not measured at fair value in statement of financial position but for which fair value is disclosed [Member] $ in Millions	Dec. 31, 2018 CAD ($)
Disclosure of fair value measurement of liabilities [line items]
Notes payable	$ 76.9
Significant other observable inputs [member]
Disclosure of fair value measurement of liabilities [line items]
Notes payable	$ 76.9

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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.

+ Details

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- Definition

Notes payable.

+ References

No definition available.

+ Details

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- Details

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- Details

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