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Segment and Related Information - Schedule of Total Operating Income for Reportable Segments (Detail) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting [Abstract]
Total operating income for reportable segments	$ 6.2	$ 43.3
Interest income	0.3	0.1
Other	(2.5)	0.1
Income before income tax	4.0	43.5
Income tax provision	5.2	13.2
Net income (loss)	$ (1.2)	$ 30.3

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

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-Publisher FASB
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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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