Debt (Other Credit Facilities) (Narrative) (Details) - Other Credit Facilities [Member] CAD in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2014 CAD	Dec. 31, 2013 USD ($)
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity (in dollars) | CAD		CAD 45.0
Line of credit facility, amount outstanding (in dollars)	$ 1.2		$ 0.0
Plan [Member]
Debt Instrument [Line Items]
Debt instrument, intent to refinance, description	Outstanding borrowings that are not renewed are repaid with borrowings under the Credit Facility. Accordingly, the carrying amounts of the Company’s borrowings under its other credit facilities are classified within long-term debt in the Company’s consolidated balance sheet as of December 31, 2014.
Weighted Average [Member]
Debt Instrument [Line Items]
Line of credit facility, interest rate (percentage)	4.00%	4.00%
Canadian Dollars [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity (in dollars)	$ 38.7
Line of credit facility, amount outstanding (in dollars)	$ 1.2