Stock-Based Compensation (Schedule of Assumptions Used in Estimate of Fair Value of Stock Option Awards) (Details)	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Minimum [Member]
Expected term	5 years 9 months 18 days	5 years 9 months 18 days
Estimated volatility	38.50%	48.70%
Estimated dividend yield	0.80%	1.00%
Risk-free interest rate	1.70%	0.80%
Maximum [Member]
Expected term	8 years 7 months 6 days	8 years 7 months 6 days
Estimated volatility	38.50%	54.90%
Estimated dividend yield	0.80%	1.00%
Risk-free interest rate	2.50%	1.30%