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Subsequent Events	12 Months Ended
Subsequent Events	Sep. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On November 7, 2017, our Board of Directors declared a quarterly cash dividend on our common stock in the amount of $0.26 per share. The dividend is payable on December 13, 2017 to shareholders of record at the close of business on November 21, 2017.