Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Revenues:
Rentals and leases	$ 129,255	$ 137,417	$ 136,591
Sales of equipment and other revenues	109,074	103,720	112,140
Total revenues	238,329	241,137	248,731
Operating expenses:
Depreciation of rental and lease equipment	56,445	57,034	56,795
Costs of rentals and leases, excluding depreciation	18,086	18,292	17,788
Costs of sales of equipment and other revenues	81,557	74,752	80,894
Selling, general and administrative expenses	59,313	58,920	56,543
Total operating expenses	215,401	208,998	212,020
Operating profit	22,928	32,139	36,711
Interest income, net	332	387	402
Other income	1,390	0	0
Income before income taxes	24,650	32,526	37,113
Income tax provision	9,218	12,118	14,359
Net income	$ 15,432	$ 20,408	$ 22,754
Earnings per share:
Basic, in dollars per share	$ 0.63	$ 0.84	$ 0.94
Diluted, in dollars per share	$ 0.63	$ 0.84	$ 0.94
Shares used in per share calculation:
Basic, in shares	24,360	24,325	24,226
Diluted, in shares	24,378	24,357	24,269
Cash dividend declared per share, in dollars per share	$ 0.80	$ 0.80	$ 1.80