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Supplemental Cash Flow Information
12 Months Ended
Sep. 30, 2019
Supplemental Cash Flow Information [Abstract]  
Supplemental Cash Flow Information Supplemental Cash Flow Information
Cash paid for Interest and Income Taxes
 
Year Ended September 30,
 
2019
 
2018
 
2017
 
(Dollars in thousands)
Interest paid
$
72,630

 
$
93,121

 
$
91,718

Income taxes paid
$
24,056

 
$
18,485

 
$
21,700