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Accounts Payable and Accrued Liabilities (Tables) | 6 Months Ended
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Jun. 30, 2013
Accounts Payable and Accrued Liabilities |
Summary of accrued expenses and other current liabilities |
|  | June 30, 2013 |  | December 31, 2012 |
Payroll and related employee benefits |  | $ | 40,147 |  | $ | 33,086 |
Insurance, including self-insurance reserves |  | 27,800 |  | 22,982 |
Reserve for estimated losses on uncompleted contracts |  | 522 |  | 764 |
Corporate income taxes and other taxes |  | 2,173 |  | 3,779 |
Accrued overhead cost |  | 1,266 |  | 2,007 |
Other |  | 8,441 |  | 13,534 |
|  | $ | 80,349 |  | $ | 76,152 |

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