Retirement Plans (Tables)

9 Months Ended

Feb. 28, 2015

Retirement Plan (Tables) [Abstract]

Schedule of Retirement Plan Costs

		Three Months Ended				Nine Months Ended
		2015		2014		2015		2014
U.S. domestic and international pension plans		$	66	$	124	$	199	$	366
U.S. domestic and international defined contribution
	plans		96		90		284		269
U.S. domestic and international postretirement
	healthcare plans		21		20		61		59
		$	183	$	234	$	544	$	694

Schedule of Net Periodic Benefit Cost

		Three Months Ended				Nine Months Ended
Pension Plans		2015		2014		2015		2014
	Service cost	$	165	$	164	$	493	$	492
	Interest cost		274		264		824		790
	Expected return on plan assets		(420)		(374)		(1,260)		(1,121)
	Recognized actuarial losses and other		47		70		142		205
		$	66	$	124	$	199	$	366
		Three Months Ended				Nine Months Ended
Postretirement Healthcare Plans		2015		2014		2015		2014
	Service cost	$	10	$	10	$	30	$	29
	Interest cost		11		10		31		30
		$	21	$	20	$	61	$	59

Schedule of Pension Plans Contributions

	2015		2014
Required	$	380	$	480
Voluntary		115		15
	$	495	$	495