Retirement Benefits (Tables)

3 Months Ended

Dec. 31, 2017

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Estimated Remaining Cash Contributions

Retirement pension benefits:
United States	$	-
United Kingdom		297
Japan		-
Other postretirement benefits		3,645

Defined Benefit Pension Plan [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Net Periodic Benefit Costs

	Three-Months Ended December 31,
	United States				Other Countries				Total
	2017		2016		2017		2016		2017		2016
Service cost	$	411	$	419	$	158	$	192	$	569	$	611
Interest cost		1,501		1,439		329		296		1,830		1,735
Expected return on plan assets		(2,904)		(2,632)		(686)		(641)		(3,590)		(3,273)
Amortization of:
Net actuarial loss		150		464		72		127		222		591
Prior service cost		177		96		-		-		177		96
Net periodic retirement pension benefit	$	(665)	$	(214)	$	(127)	$	(26)	$	(792)	$	(240)
Contributions paid	$	-	$	-	$	312	$	365	$	312	$	365

Defined Contribution Plan [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Costs of Retirement Plans

	Three-Months Ended
	December 31,
	2017		2016
Company costs	$	7,879	$	7,249

Other Postretirement Benefit Plans [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Net Periodic Benefit Costs

	Three-Months Ended
	December 31,
	2017		2016
Service cost	$	2	$	4
Interest cost		292		311
Amortization of:
Net actuarial loss		24		50
Prior service benefit		(40)		(40)
Curtailment gain		(330)		-
Net periodic other postretirement (benefit) cost	$	(52)	$	325
Contributions paid	$	226	$	615

Multiemployer Plans, Pension [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Costs of Retirement Plans

	Three-Months Ended
	December 31,
	2017		2016
Company contributions	$	79	$	68