Benefit Plans (Tables)

3 Months Ended

Feb. 28, 2017

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
U.S. Pension Plan	February 28, 2017			February 29, 2016
Components of net periodic pension cost (income):
Service cost	$	112		$	100
Interest cost on projected benefit obligation	564			587
Expected return on plan assets	(767		)	(776		)
Net amortization	1			—
Net periodic pension income	$	(90	)	$	(89	)

German Pension Plan [Member]

Item Effected [Line Items]

Components of Net Periodic Pension (Benefit) Cost

	Three Months Ended
German Pension Plan	February 28, 2017		February 29, 2016
Components of net periodic pension cost:
Interest cost on projected benefit obligation	$	100	$	130
Net amortization	84		80
Net periodic pension cost	$	184	$	210