Pension and Postretirement Benefit Plans (Tables)

3 Months Ended

Nov. 30, 2015

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

The components of the Company’s net periodic benefit cost for defined benefit pension and other postretirement benefit plans are shown below:

	Three months ended November 30,
	2015			2014
	(In thousands)
Defined benefit pension plans:
Service cost	$	1,294		$	1,254
Interest cost	1,063			1,168
Expected return on plan assets	(504		)	(471		)
Actuarial loss (gain) and amortization of prior service cost (credit), net	724			786
Net periodic pension benefit cost	$	2,577		$	2,737
Other postretirement benefit plan:
Service cost	$	1		$	1
Interest cost	97			110
Actuarial loss (gain) and amortization of prior service cost (credit), net	(149		)	(135		)
Net periodic postretirement benefit cost (credit)	$	(51	)	$	(24	)