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Summary of Significant Accounting Policies - Foreign Currency Translation (Details) - CAD / $ | Dec. 31, 2016 | Oct. 14, 2016 | Oct. 13, 2016 | Dec. 31, 2015
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Schedule of Equity Method Investments [Line Items] |  |  |  |
Foreign exchange rate (CAD per USD) | 1.34 | 1.32 | 1.32 | 1.38
Weighted Average |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Foreign exchange rate (CAD per USD) | 1.33 |  |  | 1.28

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- Definition Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521 + Details
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