Income Taxes (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013 State	Dec. 31, 2013 Federal
Income taxes
Net operating loss		$ 106.0	$ 67.1
Valuation allowance	0
Unrecognized tax benefits	7.3
Unrecognized tax benefits that, if recognized would impact effective tax rate	$ 1.6

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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