Income Taxes - Additional Information (Detail)	9 Months Ended
Feb. 28, 2014	Feb. 28, 2013
Income Taxes [Line Items]
Estimated annual effective income tax rate	27.30%	31.80%
Percentage of tax expense of TWB's foreign operations of acquiree since consolidation date included in reported income tax expense	100.00%

Percentage of Tax Expense of Foreign Operations of Acquiree since Acquisition Date Included in Reported Income Tax Expense

No definition available.

Name:	wor_PercentageOfTaxExpenseOfForeignOperationsOfAcquireeSinceAcquisitionDateIncludedInReportedIncomeTaxExpense
Namespace Prefix:	wor_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration