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Earnings Per Share ("EPS") (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Earnings Per Share [Abstract]
Net income	$ 1.1us-gaap_NetIncomeLoss		$ 8.4us-gaap_NetIncomeLoss
Weighted average shares for basic EPS	136.9us-gaap_WeightedAverageNumberOfSharesOutstandingBasic		97.0us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Dilutive potential shares from grants of RSUs, PRSUs and stock options	0.7us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	[1]	0us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Weighted average shares for diluted EPS	137.6us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding		97.0us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0.4us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
[1] The potential impact of an aggregate 0.4 million granted RSUs, PRSUs and stock options for the three months ended March 31, 2015, was antidilutive.

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Section 50

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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-Glossary Other Comprehensive Income

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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