Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	May 31, 2016	May 31, 2015
Receivables, allowances	$ 4,579	$ 3,085
Other intangible assets, accumulated amortization	$ 49,532	$ 47,547
Preferred shares, without par value	$ 0	$ 0
Preferred shares, shares authorized	1,000,000	1,000,000
Preferred shares, shares issued	0	0
Preferred shares, shares outstanding	0	0
Common stock, without par value	$ 0	$ 0
Common shares, authorized	150,000,000	150,000,000
Common shares, shares issued	61,533,668	64,141,478
Common shares, shares outstanding	61,533,668	64,141,478
Accumulated other comprehensive income (loss), taxes	$ 4,768	$ 16,909