XML 117 R108.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Retirement Benefits (Schedule of Net Periodic Benefit Costs) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Pension Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 1,125 $ 875
Interest cost 1,719 2,076
Expected return on plan assets (3,919) (3,658)
Amortization of: Net actuarial loss 619 225
Amortization of: Prior service cost (benefit) 240 177
Net periodic retirement pension (benefit) cost (216) (305)
Contributions paid 1,131 554
Other Postretirement Benefit Plans [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 1 1
Interest cost 195 288
Amortization of: Net actuarial loss 12 14
Amortization of: Prior service cost (benefit) 1 (1)
Net periodic retirement pension (benefit) cost 209 302
Contributions paid - other postretirement plans 345 373
United States [Member] | Pension Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 415 363
Interest cost 1,398 1,596
Expected return on plan assets (3,087) (2,996)
Amortization of: Net actuarial loss 358 154
Amortization of: Prior service cost (benefit) 234 177
Net periodic retirement pension (benefit) cost (682) (706)
Other Countries [Member] | Pension Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 710 512
Interest cost 321 480
Expected return on plan assets (832) (662)
Amortization of: Net actuarial loss 261 71
Amortization of: Prior service cost (benefit) 6  
Net periodic retirement pension (benefit) cost 466 401
Contributions paid $ 1,131 $ 554