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Consolidated Statement of Cash Flows (Tables) | 12 Months Ended
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Dec. 31, 2015
Consolidated Statement of Cash Flows [Abstract] |
Changes in Operating Assets and Liabilities |
| Year Ended December 31,
(in thousands) | 2015 |  | 2014 |  | 2013
Decrease (Increase) in: |  |  |  |  |  |  |  |
Accounts receivable | $ | 4,734 |  | $ | (186,384) |  | $ | (62,991)
Costs and estimated earnings in excess of billings |  | (178,774) |  |  | (153,153) |  |  | (107,983)
Other current assets |  | (38,616) |  |  | (17,450) |  |  | 25,250
Increase (Decrease) in: |  |  |  |  |  |  |  |
Accounts payable |  | 139,290 |  |  | 33,667 |  |  | 59,169
Billings in excess of costs and estimated earnings |  | (30,985) |  |  | 51,711 |  |  | (36,835)
Accrued expenses |  | (24,426) |  |  | 2,801 |  |  | (6,509)
Changes in other components of working capital | $ | (128,777) |  | $ | (268,808) |  | $ | (129,899)
Cash paid during the year for: |  |  |  |  |  |  |  |
Interest | $ | 45,055 |  | $ | 45,236 |  | $ | 41,207
Income taxes | $ | 35,299 |  | $ | 75,494 |  | $ | 28,898
Non-cash transactions during the year for: |  |  |  |  |  |  |  |
Property and equipment acquired through financing arrangements not included in financing activities | $ | — |  | $ | 816 |  | $ | 16,689

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- Definition Tabular disclosure of the net increase (decrease) in operating capital in the operating section of the statement of cash flows, represents the entire footnote disclosure that provides details regarding the net change during the reporting period of all assets and liabilities used in operating activities. + References No definition available. + Details
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