Other Current Assets (Details) - CAD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Schedule of other current assets [Abstract]
Prepaid expenses and deposits	$ 3.5	$ 3.9
Contract Asset(Note 18)	1.6	2.1
Restricted cash(a)	0.5	0.5
Other current deferred assets	0.3	0.1
Total	$ 5.9	$ 6.6