COMMON STOCK (Schedule of Weighted Average Fair Value per Share of Stock Options and Related Valuation Assumptions) (Details) - Stock Options [Member] - $ / shares	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Stock Options
Weighted average fair value per share	$ 12.83	$ 11.91	$ 7.91
Valuation assumptions:
Risk-free interest rate	1.60%	1.30%	0.60%
Expected dividend yield	1.40%	1.40%	1.90%
Expected volatility	35.00%	36.10%	40.20%
Weighted average expected life	4 years 10 months 24 days	4 years 10 months 24 days	4 years 10 months 24 days