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Other Liabilities - Summary of Other Liabilities (Detail) - CAD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Liabilities [abstract] |  |
Lease inducement benefits | $ 111.2 | $ 57.2
Deferred share units payable | 9.0 | 15.5
Other cash-settled share-based compensation | 3.8 | 7.0
Liability for uncertain tax positions | 35.0 | 31.3
Other | 4.6 | 16.3
Other liabilities | 163.6 | 127.3
Other liabilities | 163.6 | 127.3
Less current portion | 23.2 | 26.2
Long-term portion | $ 140.4 | $ 101.1

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- Definition Lease inducement benefits. + References No definition available. + Details
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