Income Taxes - Additional Information (Detail)	6 Months Ended
Nov. 30, 2016	Nov. 30, 2015
Income Taxes [Line Items]
Estimated annual effective income tax rate	28.50%	30.90%

The entity's estimated annual effective income tax rate.

No definition available.

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