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Contract Costs - Additional Information (Detail) (USD $)
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3 Months Ended | ||
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Mar. 31, 2013
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Mar. 31, 2012
Project
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Dec. 31, 2012
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| Long-term Contracts or Programs Disclosure [Line Items] | |||
| Pass-through costs as a percentage of revenue | 56.30% | 35.40% | |
| Prepaid subcontractor costs | $ 31,837,000 | $ 33,145,000 | |
| Total revenue recorded in relation to re-measure units and quantities within customer construction contract | 4,800,000 | ||
| Total revenue recorded in relation to orders change in projects | $ 588,000 | ||
| Number of projects orders changed | 2 | ||
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- Details
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- Definition
Number of customer projects that included a change order. No definition available.
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- Definition
Pass through costs as percent of revenue No definition available.
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- Definition
Revenue earned during the period arising from products sold or services provided related to additional work scope not specified in the original customer contract. No definition available.
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- Definition
Revenue recognized related to re-measured quantities within the scope of construction contract. No definition available.
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- Definition
Carrying amount as of the balance sheet date of expenditures made, not otherwise specified in the taxonomy, in advance of the timing of recognition of expenses which are expected to be charged against earnings within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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