Other Comprehensive Income (Tables)

3 Months Ended

Aug. 31, 2012

Other Comprehensive Income [Abstract]

Changes in accumulated balances for each component of other comprehensive income

	August 31, 2012			May 31, 2012
	(unaudited)
Foreign currency translation adjustments	$	(1,572	)	$	(4,593	)
Foreign currency hedge		2,566			2,678
Tax provision on other comprehensive income		(1,536	)		(672	)
Total	$	(542	)	$	(2,587	)

Related tax effects allocated to each component of other comprehensive income

	Three Months Ended August 31, 2012									Three Months Ended August 31, 2011
	(unaudited)
	Gross Amount			Tax Effect			Net Amount			Gross Amount			Tax Effect		Net Amount
Foreign currency translation adjustments	$	3,038		$	(908	)	$	2,130		$	278		$	10	$	288
Foreign currency hedge		(112	)		44			(68	)		(34	)		13		(21	)
	$	2,926		$	(864	)	$	2,062		$	244		$	23	$	267