Basis of Presentation (Tables)

3 Months Ended

Aug. 31, 2014

Accounting Policies [Abstract]

Fair Value of Foreign Exchange Forward Contracts

The fair value of our foreign exchange forward contracts in the consolidated balance sheets is shown in the table below:

Derivatives Not Designated as Hedging Instruments	Consolidated Balance Sheet Location	August 31, 2014		May 31, 2014
Foreign exchange forward contracts	Other assets	$	125	$	9

Losses Recognized in Income for Derivative Instruments

The table below provides data about the amount of gains and losses recognized in income for derivative instruments not designated as hedging instruments:

Derivatives Not Designated as Hedging Instruments	Location of Gain/(Loss) Recognized in Income on Derivatives	Three Months Ended August 31, 2014		Three Months Ended August 31, 2013
Foreign exchange forward contracts	SG&A expenses	$	127	$	(87	)

Summary of Other Assets

Other assets consisted of the following:

	August 31, 2014		May 31, 2014
Demonstration equipment	$	9,396	$	6,659
Net investment in sales-type leases	7,327		7,264
Prepaid expenses and other	3,609		2,978
SERP	3,510		3,418
Income taxes receivable	—		1,831
	$	23,842	$	22,150