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Retirement Benefit Plans (Tables)
6 Months Ended
Mar. 31, 2022
Retirement Benefits [Abstract]  
Schedule of Components of Net Periodic Benefit Cost The components of net periodic benefit cost of the Company’s defined benefit plans are as follows:
Three Months Ended
March 31,
Six Months Ended
March 31,
 2022202120222021
Service cost$11 $26 $21 $52 
Interest cost178 175 357 350 
Expected return on plan assets(340)(355)(681)(711)
Amortization of net loss119 211 238 423 
Net periodic cost$(32)$57 $(65)$114