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Costs, Estimated Earnings and Billings on Uncompleted Contracts (Tables) | 3 Months Ended
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Apr. 30, 2015
Contractors [Abstract] |
Aggregate Amount of Costs Incurred and Earnings Accrued on Uncompleted Contracts Compared with Billings on Contracts | The tables below set forth the aggregate amount of costs incurred and earnings accrued on uncompleted contracts compared with the billings on those contracts through April 30 and January 31, 2015, and reconcile the net amounts of billings in excess of costs and estimated earnings to the amounts included in the condensed consolidated balance sheets at those dates.
|  | April 30, |  |  | January 31, |
|  | 2015 |  |  | 2015 |
Costs incurred on uncompleted contracts |  | $ | 395,208,000 |  |  | $ | 324,839,000 |
Estimated accrued earnings |  |  | 75,776,000 |  |  |  | 60,809,000 |
|  |  | 470,984,000 |  |  |  | 385,648,000 |
Less – Billings to date |  |  | 633,362,000 |  |  |  | 546,757,000 |
|  | $ | (162,378,000 | ) |  | $ | (161,109,000 | )
Costs and estimated earnings in excess of billings |  | $ | 595,000 |  |  | $ | 455,000 |
Billings in excess of costs and estimated earnings |  |  | 162,973,000 |  |  |  | 161,564,000 |
|  | $ | (162,378,000 | ) |  | $ | (161,109,000 | )

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- Definition Tabular disclosure for billings on uncompleted contracts in excess of costs and costs of uncompleted contracts in excess of billings. + References No definition available. + Details
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