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Business and summary of significant accounting policies (Details 2) (Total Revenue)
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12 Months Ended |
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Sep. 30, 2012
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Performance-based contracts
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| Revenue Recognition | |
| Percentage of total revenue | 44.00% |
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Cost-plus contracts
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| Revenue Recognition | |
| Percentage of total revenue | 25.00% |
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Fixed-price contracts
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| Revenue Recognition | |
| Percentage of total revenue | 27.00% |
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Time and materials contracts
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| Revenue Recognition | |
| Percentage of total revenue | 4.00% |
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- Details
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- Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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