XML 113 R90.htm IDEA: XBRL DOCUMENT v3.5.0.2
Subsequent Events (Details) - $ / shares
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Subsequent Event [Line Items]        
Dividends declared, in dollars per share   $ 0.100 $ 0.075 $ 0.070
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Dividends Payable, Date Declared Oct. 26, 2016      
Dividends declared, in dollars per share $ 0.03      
Dividends Payable, Date to be Paid Nov. 21, 2016      
Dividends Payable, Date of Record Nov. 10, 2016