Postretirement and Other Employee Benefits (Tables)

6 Months Ended

Feb. 29, 2016

Postretirement and Other Employee Benefits [Abstract]

Information about Net Periodic Benefit Cost for Pension Plans

		The following table provides information about net periodic benefit cost for the pension plans during the
three months and six months ended February 29, 2016 and February 28, 2015 (in thousands):
			Three months ended				Six months ended
			February 29,		February 28,		February 29,		February 28,
			2016		2015		2016		2015
	Service cost		$	218	$	265	$	440	$	547
	Interest cost			1,217		1,415		2,485		2,883
	Expected long-term return on plan assets			(1,397)		(1,470)		(2,860)		(2,991)
	Recognized actuarial loss			260		497		526		1,012
	Amortization of prior service cost			(34)		(38)		(69)		(79)
	Net periodic benefit cost		$	264	$	669	$	522	$	1,372