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Condensed Consolidating Statement of Cash Flow (Detail) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Disclosure of subsidiaries [Line Items] |  |
Operations | $ 293,334 | $ 116,555
Investments | (100,794) | (91,150)
Financing | (169,085) | (73,784)
Effects of exchange rate changes on cash and cash equivalents | 8,090 | (2,245)
Increase (decrease) in cash and cash equivalents | 31,545 | (50,624)
Cash and cash equivalents, beginning of year | 65,081 | 115,705
Cash and cash equivalents, end of year | 96,626 | 65,081
Parent Company [Member] |  |
Disclosure of subsidiaries [Line Items] |  |
Operations | (102,901) | (160,698)
Investments | 277,501 | 191,638
Financing | (169,085) | (73,784)
Effects of exchange rate changes on cash and cash equivalents | 2,268 | 1,893
Increase (decrease) in cash and cash equivalents | 7,783 | (40,951)
Cash and cash equivalents, beginning of year | 20,843 | 61,794
Cash and cash equivalents, end of year | 28,626 | 20,843
Guarantor Subsidiaries [Member] |  |
Disclosure of subsidiaries [Line Items] |  |
Operations | 351,782 | 243,364
Investments | (75,740) | (58,942)
Financing | (247,017) | (190,360)
Effects of exchange rate changes on cash and cash equivalents | 2,691 | (1,778)
Increase (decrease) in cash and cash equivalents | 31,716 | (7,716)
Cash and cash equivalents, beginning of year | 5,422 | 13,138
Cash and cash equivalents, end of year | 37,138 | 5,422
Non-Guarantor Subsidiaries [Member] |  |
Disclosure of subsidiaries [Line Items] |  |
Operations | 44,453 | 33,889
Investments | (16,253) | (11,152)
Financing | (39,285) | (22,334)
Effects of exchange rate changes on cash and cash equivalents | 3,131 | (2,360)
Increase (decrease) in cash and cash equivalents | (7,954) | (1,957)
Cash and cash equivalents, beginning of year | 38,816 | 40,773
Cash and cash equivalents, end of year | 30,862 | 38,816
Consolidating Adjustments [Member] |  |
Disclosure of subsidiaries [Line Items] |  |
Investments | (286,302) | (212,694)
Financing | $ 286,302 | $ 212,694

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