CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2016	Sep. 30, 2015
Statement of Financial Position [Abstract]
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	180,000,000	180,000,000
Common stock, shares issued (in shares)	64,799,000	64,654,000
Common stock, shares outstanding (in shares)	64,799,000	65,654,000