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Debt (New Loan and Security Agreements) (Details)
Mar. 31, 2017
USD ($)
Revolving Credit Facility [Member] | U.S. [Member]  
Line of Credit Facility [Line Items]  
Outstanding borrowings $ 0
Revolving Credit Facility [Member] | Canadian [Member]  
Line of Credit Facility [Line Items]  
Outstanding borrowings 0
Term Loan [Member] | U.S. [Member]  
Line of Credit Facility [Line Items]  
Outstanding borrowings 53,100,000
Term Loan [Member] | Canadian [Member]  
Line of Credit Facility [Line Items]  
Outstanding borrowings $ 5,500,000