XML 24 R6.htm IDEA: XBRL DOCUMENT v3.21.2
Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Statement of Comprehensive Income [Abstract]      
Tax benefit (expense) on change in fair value of cash flow hedges $ 3,369 $ (2,371) $ (2,458)
Tax (expense) benefit on unrealized gain (loss) on defined benefit plan $ (1,461) $ (11) $ 1,080