Earnings Per Share Schedule of Earnings Per Share, Basic and Dilutive (Details) - shares shares in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]
Basic (in shares)	27,628	25,795	24,651
Incremental Common Shares Attributable to Dilutive Effect of Contingently Issuable Shares (in shares)	4,069	5,784	0
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements (in shares)	75	216	0
Weighted Average Number of Shares Outstanding, Diluted (in shares)	31,772	31,795	24,651