Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Aug. 30, 2014	Aug. 31, 2013	May 31, 2014
Income Tax [Line Items]
Effective income tax rate from continuing operation	61.90%	18.50%
Federal statutory rate	34.00%
Description of tax years open for examination in foreign tax jurisdictions	Our most significant foreign tax jurisdictions are Germany and the Netherlands. We have tax years open in Germany beginning in fiscal 2007 and the Netherlands beginning in fiscal 2008.
Deferred Tax Liabilities, Other	$ 6,800,000
Deferred Tax Liabilities, Undistributed Foreign Earnings	41,600,000
Cumulative positive earnings of foreign subsidiaries	43,100,000
Liability for uncertain tax positions related to continuing operations, excluding interest and penalties			0
Maximum [Member]
Income Tax [Line Items]
Liability for uncertain tax positions related to continuing operations, excluding interest and penalties	$ 100,000