Condensed Consolidated Statement of Stockholders' Equity - 3 months ended Dec. 31, 2016 - USD ($) $ in Millions	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]
Balances as of beginning of period at Sep. 30, 2016	$ 433.8	$ 0.2	$ (46.3)	$ 249.4	$ 255.1	$ (24.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6.3				6.3
Other comprehensive loss	(0.9)					(0.9)
Exercise of stock options	2.6			2.6
Share-based Compensation	0.8			0.8
Balances as of end of period at Dec. 31, 2016	$ 442.6	$ 0.2	$ (46.3)	$ 252.8	$ 261.4	$ (25.5)

Proceeds from Stock Options Excercised (including income tax benefit)

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This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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