Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Nov. 30, 2013	Dec. 01, 2012
Income Tax [Line Items]
Effective income tax rate from continuing operation	18.80%	15.30%
Document Fiscal Year Focus	2014
Federal statutory rate	34.00%
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent	7.60%
Description of tax years open for examination in foreign tax jurisdictions	Our primary foreign tax jurisdictions are the Netherlands and Germany. We have tax years open in the Netherlands and Germany beginning in fiscal 2008.
Cumulative positive earnings of foreign subsidiaries	$ 42.8
Liability for uncertain tax positions related to continuing operations, excluding interest and penalties		$ 0.4