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Description of Business and Significant Accounting Policies (Details Textual) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | 12 Months Ended | |||
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Feb. 29, 2012
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Feb. 28, 2011
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Feb. 29, 2012
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Feb. 28, 2011
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May 31, 2012
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May 31, 2011
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| Description of Business and Significant Accounting Policies (Textual) [Abstract] | ||||||
| Direct costs billed and incurred | $ 863.9 | $ 1,100.0 | $ 2,600.0 | $ 3,000.0 | ||
| Maximum individual workers' compensation claims liability | 1.0 | 1.0 | ||||
| Workers' compensation insurance costs in current liabilities | 6.6 | 6.6 | 7.3 | |||
| Workers' compensation insurance costs in long-term liabilities | 17.9 | 17.9 | 20.6 | |||
| Stock-based compensation costs recognized | $ 5.7 | $ 5.3 | $ 17.6 | $ 18.8 | ||
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- Details
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- Definition
Maximum individual claims liability workers' compensation insurance. No definition available.
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- Definition
Cost associated with reimbursable income. This occurs when a services entity incurs expenses on behalf of the client and passes through the cost of reimbursable expenses to a client. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying value as of the balance sheet date of obligations and payables pertaining to claims incurred of a workers compensation nature. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying value as of the balance sheet date of obligations and payables pertaining to claims incurred of a workers compensation nature. Used to reflect the noncurrent portion of the liabilities (due beyond one year; or beyond one operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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