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CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Dec. 31, 2012
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 62,894 | $ 19,825
Accounts receivable, net of allowances of $1,252 and $1,305, respectively | 181,148 | 167,241
Costs and estimated earnings in excess of billings on uncompleted contracts | 41,909 | 61,773
Deferred income tax assets | 12,481 | 12,742
Receivable for insurance claims in excess of deductibles | 11,469 | 11,379
Refundable income taxes | 2,054 | 1,044
Other current assets | 2,572 | 4,396
Total current assets | 314,527 | 278,400
Property and equipment, net of accumulated depreciation of $108,212 and $88,042, respectively | 140,484 | 128,911
Goodwill | 46,599 | 46,599
Intangible assets, net of accumulated amortization of $2,809 and $2,558, respectively | 10,283 | 10,534
Other assets | 1,794 | 1,904
Total assets | 513,687 | 466,348
Current liabilities: |  |
Accounts payable | 67,116 | 84,481
Billings in excess of costs and estimated earnings on uncompleted contracts | 67,018 | 32,589
Accrued self insurance | 39,193 | 39,583
Other current liabilities | 33,176 | 32,240
Total current liabilities | 206,503 | 188,893
Deferred income tax liabilities | 21,669 | 21,530
Other liabilities | 1,350 | 1,235
Total liabilities | 229,522 | 211,658
Commitments and contingencies |  |
Stockholders' equity: |  |
Preferred stock-$0.01 par value per share; 4,000,000 authorized shares; none issued and outstanding at September 30, 2013 and December 31, 2012 |  |
Common stock-$0.01 par value per share; 100,000,000 authorized shares; 21,132,333 and 20,747,161 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively | 209 | 206
Additional paid-in capital | 159,299 | 154,564
Retained earnings | 124,657 | 99,920
Total stockholders' equity | 284,165 | 254,690
Total liabilities and stockholders' equity | $ 513,687 | $ 466,348

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