Retirement Plans (Tables)

6 Months Ended

Nov. 30, 2014

Retirement Plan (Tables) [Abstract]

Schedule of Retirement Plan Costs

		Three Months Ended				Six Months Ended
		2014		2013		2014		2013
U.S. domestic and international pension plans		$	65	$	121	$	133	$	242
U.S. domestic and international defined contribution
	plans		94		88		188		177
U.S. domestic and international postretirement
	healthcare plans		20		19		40		39
		$	179	$	228	$	361	$	458

Schedule of Net Periodic Benefit Cost

		Three Months Ended				Six Months Ended
Pension Plans		2014		2013		2014		2013
	Service cost	$	164	$	164	$	328	$	328
	Interest cost		275		263		550		526
	Expected return on plan assets		(420)		(374)		(840)		(747)
	Recognized actuarial losses and other		46		68		95		135
		$	65	$	121	$	133	$	242
		Three Months Ended				Six Months Ended
Postretirement Healthcare Plans		2014		2013		2014		2013
	Service cost	$	10	$	9	$	20	$	19
	Interest cost		10		10		20		20
		$	20	$	19	$	40	$	39

Schedule of Pension Plans Contributions

	2014		2013
Required	$	247	$	315
Voluntary		83		15
	$	330	$	330