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Retirement Benefits (Tables)

9 Months Ended

Jun. 30, 2019

Defined Benefit Plan Disclosure [Line Items]

Schedule of Amount of Expense Associated with Defined Contribution Plans

		Three-Months Ended						Nine-Months Ended
		June 30,						June 30,
		2019			2018			2019			2018
Company costs		$	8,969		$	8,262		$	26,426		$	24,858

Schedule of Estimated Remaining Cash Contributions

Retirement pension benefits:
United States		$	-
United Kingdom			173
Japan			-
Germany			271
Other postretirement benefits			2,026

Schedule of Amounts of Contributions Associated with Multiemployer Defined Benefit Plans

		Three-Months Ended						Nine-Months Ended
		June 30,						June 30,
		2019			2018			2019			2018
Company contributions		$	55		$	86		$	193		$	253

Defined Benefit Pension Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Periodic Benefit Costs

		Three-Months Ended June 30,
		United States						Other Countries						Total
		2019			2018			2019			2018			2019			2018
Service cost		$	363		$	410		$	509		$	283		$	872		$	693
Interest cost			1,596			1,501			477			386			2,073			1,887
Expected return on plan assets			(2,996)			(2,904)			(663)			(703)			(3,659)			(3,607)
Amortization of:
Net actuarial loss			154			150			71			74			225			224
Prior service cost			177			177			-			-			177			177
Net periodic retirement pension (benefit) cost		$	(706)		$	(666)		$	394		$	40		$	(312)		$	(626)
Contributions paid		$	-		$	-		$	319		$	227		$	319		$	227
		Nine-Months Ended June 30,
		United States						Other Countries						Total
		2019			2018			2019			2018			2019			2018
Service cost		$	1,088		$	1,232		$	1,533		$	606		$	2,621		$	1,838
Interest cost			4,788			4,503			1,442			1,059			6,230			5,562
Expected return on plan assets			(8,989)			(8,711)			(1,997)			(2,106)			(10,986)			(10,817)
Amortization of:
Net actuarial loss			463			449			215			221			678			670
Prior service cost			532			532			-			-			532			532
Net periodic retirement pension (benefit) cost		$	(2,118)		$	(1,995)		$	1,193		$	(220)		$	(925)		$	(2,215)
Contributions paid		$	-		$	-		$	1,382		$	658		$	1,382		$	658

Other Postretirement Benefit Plans [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Periodic Benefit Costs

		Three-Months Ended						Nine-Months Ended
		June 30,						June 30,
		2019			2018			2019			2018
Service cost		$	1		$	1		$	4		$	5
Interest cost			288			291			865			874
Amortization of:
Net actuarial loss			13			24			41			72
Prior service benefit			(1)			(40)			(4)			(119)
Curtailment gain			-			-			-			(330)
Net periodic other postretirement cost		$	301		$	276		$	906		$	502
Contributions paid		$	512		$	595		$	1,589		$	1,830

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