Common Stock	6 Months Ended
Mar. 31, 2017
Class of Stock Disclosures [Abstract]
Common Stock	Common Stock The stock-based compensation cost that was charged against income, net of tax, for all plans was $4.5 million in both of the quarterly periods ended March 31, 2017 and 2016, and $7.7 million in both of the year to date periods ended March 31, 2017 and 2016. During the first quarter of fiscal 2017, we purchased 0.6 million shares of our common stock for $30.0 million in the open market, leaving $34.7 million of shares available for purchase under a $190 million share repurchase program approved by the Board of Directors in September 2013, which does not have an expiration date.

Common Stock

6 Months Ended

Mar. 31, 2017

Class of Stock Disclosures [Abstract]

The stock-based compensation cost that was charged against income, net of tax, for all plans was $4.5 million in both of the quarterly periods ended March 31, 2017 and 2016, and $7.7 million in both of the year to date periods ended March 31, 2017 and 2016.

During the first quarter of fiscal 2017, we purchased 0.6 million shares of our common stock for $30.0 million in the open market, leaving $34.7 million of shares available for purchase under a $190 million share repurchase program approved by the Board of Directors in September 2013, which does not have an expiration date.