Supplemental Disclosures (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Doubtful Accounts
Interest paid	$ 13.3	$ 7.8	$ 6.0
Income taxes paid	31.9	9.3	17.6
Capital spending in accounts payable and accrued liabilities	8.8	2.6	2.5
Allowance for Doubtful Accounts [Member]
Allowance for Doubtful Accounts
Beginning balance	0.4	0.3	0.4
Bad debt expense	0.4	0.2	0.3
Write-offs and discounts	0.0	(0.1)	(0.4)
Currency translation	0.0	0.0	0.0
Ending balance	$ 0.8	$ 0.4	$ 0.3

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Future cash outflow to pay for purchases of fixed assets that have occurred.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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Amount of increase (decrease) in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from adjustments.

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Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to costs and expenses.

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Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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