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Discontinued Operations (Summary of Income From Discontinued Operations) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Revenues	$ 0.0	$ 9.6
Operating expenses	0.8	21.9
Operating loss before income taxes	(0.8)	(12.3)
Income tax benefit	(0.1)	12.1
Gain (loss) on disposal of discontinued operations, net	0.0	0.0
DISCONTINUED OPERATIONS, NET	$ (0.9)	$ (0.2)

X

- Definition

Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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- Definition

Amount of tax expense (benefit) attributable to income (loss) from operations classified as a discontinued operation. Excludes tax expense (benefit) for gain (loss) on disposal and for provision for gain (loss) until disposal.

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Amount of operating expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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