Benefit Plans (Tables)

3 Months Ended

Feb. 28, 2013

Net Periodic Pension Cost

The following table summarizes the components of net periodic pension cost (in thousands):

	U.S. Pension Plan Three Months Ended						German Pension Plan Three Months Ended
	February 28, 2013			February 29, 2012			February 28, 2013		February 29, 2012
Components of net periodic pension cost
Service cost	$	56		$	44		$	16	$	9
Interest cost on projected benefit obligation		529			584			217		267
Expected return on plan assets		(665	)		(616	)		—		—
Net amortization		300			317			—		—
Net periodic pension cost	$	220		$	329		$	233	$	276