Derivative Financial Instruments - Additional Information (Details) CAD in Millions	1 Months Ended
	Sep. 30, 2016 CAD	Sep. 30, 2016 USD ($)	Sep. 30, 2016 CAD	Sep. 30, 2015 CAD
Canadian Dollar Forward Contract
Derivative [Line Items]
Foreign currency forward contract to hedge	CAD 3.0
Foreign currency forward contract term	90 days
Fair value of contract asset | $		$ 5,000
Canadian Subsidiary
Derivative [Line Items]
Denominated intercompany accounts payable			CAD 27.1	CAD 28.1
Denominated intercompany accounts payable, short-term nature			2.9
Denominated intercompany accounts payable, long-term nature			CAD 24.2