Benefit Plans (Tables)

9 Months Ended

Aug. 31, 2016

U.S Pension Plan [Member]

Item Effected [Line Items]

Components of Net Periodic Pension (Benefit) Cost

The components of net periodic pension cost (income) for our pension plans are as follows (in thousands):

	Three Months Ended August 31,						Nine Months Ended August 31,
U.S. Pension Plan	2016			2015			2016			2015
Components of net periodic pension cost (income):
Service cost	$	100		$	63		$	300		$	189
Interest cost on projected benefit obligation	587			585			1,761			1,755
Expected return on plan assets	(730		)	(848		)	(2,190		)	(2,544		)
Net periodic pension income	$	(43	)	$	(200	)	$	(129	)	$	(600	)

German Pension Plan [Member]

Item Effected [Line Items]

Components of Net Periodic Pension (Benefit) Cost

	Three Months Ended August 31,				Nine Months Ended August 31,
German Pension Plan	2016		2015		2016		2015
Components of net periodic pension cost:
Interest cost on projected benefit obligation	$	133	$	132	$	398	$	395
Net amortization	83		82		246		245
Net periodic pension cost	$	216	$	214	$	644	$	640