Total Proceeds Received related to Insurance Claim since Date of Loss (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Feb. 28, 2014
Unusual or Infrequent Item [Line Items]
Property and equipment	$ 2,900
Total insurance proceeds	5,201
Business interruption
Unusual or Infrequent Item [Line Items]
Insurance proceeds, operating	1,628
Other expenses
Unusual or Infrequent Item [Line Items]
Insurance proceeds, operating	$ 673

The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement. This element pertains only to insurance proceeds related to investments, for example fixed assets. It excludes insurance settlements classified as operating cash flows.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement. This element pertains only to insurance proceeds related to operating activities. It excludes insurance settlements classified as investing cash flows, for example, insurance settlements related to fixed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 16

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3337-108585

+ Details

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Period Type:	duration

- Details

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Balance Type:	na
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- Definition

The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement. This element pertains to insurance proceeds related to both operating and investing activities.

+ References

No definition available.

+ Details

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Namespace Prefix:	wor_
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Balance Type:	debit
Period Type:	duration