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Goodwill, Service Contracts and Other Assets (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Aug. 31, 2012
Service contracts [Roll Forward] |
Balance at the beginning of the period | $ 76,822
Service contracts acquired | 336
Service contracts amortization | (6,033)
Foreign currency translation | 1,172
Balance at the end of the period | 72,297
Rental Uniforms and Ancillary Products [Member] |
Service contracts [Roll Forward] |
Balance at the beginning of the period | 29,156
Service contracts acquired | 0
Service contracts amortization | (2,402)
Foreign currency translation | 880
Balance at the end of the period | 27,634
Uniform Direct Sales [Member] |
Service contracts [Roll Forward] |
Balance at the beginning of the period | 0
Service contracts acquired | 0
Service contracts amortization | 0
Foreign currency translation | 0
Balance at the end of the period | 0
First Aid, Safety and Fire Protection [Member] |
Service contracts [Roll Forward] |
Balance at the beginning of the period | 29,334
Service contracts acquired | 0
Service contracts amortization | (1,845)
Foreign currency translation | 0
Balance at the end of the period | 27,489
Document Management [Member] |
Service contracts [Roll Forward] |
Balance at the beginning of the period | 18,332
Service contracts acquired | 336
Service contracts amortization | (1,786)
Foreign currency translation | 292
Balance at the end of the period | $ 17,174

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