Nominal or face amount used to calculate payments on the derivative asset.

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Contractual rate at which a foreign currency can be purchased or sold.

+ References

No definition available.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Other Current Assets - Narrative (Details) CAD in Thousands	12 Months Ended
Other Current Assets - Narrative (Details) CAD in Thousands	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2014 CAD	Dec. 31, 2014 USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign exchange forward contracts	$ 0				$ 7,000
Foreign Exchange Forward Contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Foreign exchange forward contracts					7,000
Not Designated as Hedging Instrument \| Foreign Exchange Forward Contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Conversion amount				CAD 6,974	6,000,000
Foreign exchange forward contracts					$ 7,000
Foreign exchange loss	$ 0	$ 368,000	$ 489,000
Minimum \| Not Designated as Hedging Instrument \| Foreign Exchange Forward Contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Exchange rate				1.1618	1.1618
Maximum \| Not Designated as Hedging Instrument \| Foreign Exchange Forward Contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Exchange rate				1.1630	1.1630