Income Taxes (Details) (Forecast [Member])	9 Months Ended
Feb. 29, 2012	Feb. 28, 2011
Forecast [Member]
Income Taxes [Line Items]
Effective income tax rates	31.90%	32.00%

Reflects the estimated annual effective tax rate for the period.

No definition available.

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