Subsequent Event (Details) - Series A Preferred Stock [Member]	12 Months Ended
	Sep. 30, 2016 $ / shares
Subsequent Event [Line Items]
Subsequent Event Description	Board of Directors declared and paid a dividend of one preferred share purchase right (a “Right”) for each outstanding share of common stock. The dividend was payable to the stockholders of record as of the close of business on November 18, 2016. Each Right represents a right to purchase one one-thousandth of a share of Series A Junior Participating Preferred Stock of the Company
Share Price	$ 79.3