XML 105 R87.htm IDEA: XBRL DOCUMENT v3.20.2
Pension Plans - Change in Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
AOCI Attributable to Parent, Before Tax [Roll Forward]    
Beginning balance $ 1,201,998 $ 874,589
Ending balance 1,438,248 1,201,998
Pension Plan    
AOCI Attributable to Parent, Before Tax [Roll Forward]    
Beginning balance 34,920 27,027
Recognized during year - net actuarial losses (3,850) (2,385)
Occurring during year - settlement loss 0 30
Occurring during year - net actuarial losses 3,460 12,274
Foreign exchange impact 2,645 (2,026)
Ending balance $ 37,175 $ 34,920