Annual report pursuant to Section 13 and 15(d)

Treasury Stock - Schedule of Treasury Stock Purchases (Details)

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Treasury Stock - Schedule of Treasury Stock Purchases (Details) - USD ($)
12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2017
Stockholders' Equity Note [Abstract]      
Total Number of Shares Purchased 752,234 72,266 104,145
Average Price Paid Per Share (in dollars per share) $ 34.00 $ 30.65 $ 29.42
Total Shares Purchased as Part of Publicly Announced Plan or Program 1,474,640 722,406 650,140
Total Dollar Value of Shares Purchased $ 25,576,000 $ 2,214,756 $ 3,064,000