Condensed Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Condensed Consolidated Statements of Operations
Revenue	$ 169.4us-gaap_SalesRevenueNet	$ 156.5us-gaap_SalesRevenueNet
Costs and expenses:
Cost of revenue, excluding depreciation and amortization	39.3us-gaap_CostOfRevenue	39.5us-gaap_CostOfRevenue
Selling, general and administrative	57.0	53.0
Depreciation and amortization	67.3	57.6
Restructuring charges	2.2	1.1
Loss on abandonment of asset		1.2us-gaap_GainLossOnDispositionOfAssets1
Income from operations	3.6us-gaap_OperatingIncomeLoss	4.1us-gaap_OperatingIncomeLoss
Other income, net		0.1us-gaap_OtherNonoperatingIncomeExpense
Interest expense, net	(12.7)
(Loss) income before income taxes	(9.1)	4.2
Income tax benefit (expense)	4.2us-gaap_IncomeTaxExpenseBenefit	(3.8)us-gaap_IncomeTaxExpenseBenefit
Net (loss) income	(4.9)us-gaap_NetIncomeLoss	0.4us-gaap_NetIncomeLoss
Preferred stock dividends	(1.0)	(1.0)
Net income less preferred stock dividends	$ (5.9)us-gaap_UndistributedEarnings	$ (0.6)us-gaap_UndistributedEarnings
Earnings (loss) per share:
Basic loss per share (in dollars per share)	$ (0.08)us-gaap_EarningsPerShareBasic	$ (0.01)us-gaap_EarningsPerShareBasic
Diluted loss per share (in dollars per share)	$ (0.08)us-gaap_EarningsPerShareDiluted	$ (0.01)us-gaap_EarningsPerShareDiluted
Weighted average common shares outstanding:
Basic (in shares)	72.4	75.0
Diluted (in shares)	72.4	75.0

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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The net result for the period of deducting operating expenses from operating revenues.

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The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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