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Supplemental Cash Flow Information (Tables) | 6 Months Ended
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Jun. 30, 2017
Supplemental Cash Flow Elements [Abstract] |
Schedule of Effect of Changes in Operating Assets and Liabilities, Net Of Non-Cash Transactions, On Cash Flows From Operating Activities of Continuing Operations | The net effect of changes in operating assets and liabilities, net of non-cash transactions, on cash flows from operating activities of continuing operations is as follows (in thousands):
| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Accounts and notes receivable | $ | (31,605 | ) |  | $ | 105,399 |  |  | $ | (126,443 | ) |  | $ | 264,394 |
Costs and estimated earnings in excess of billings on uncompleted contracts | (67,270 | ) |  | (82,456 | ) |  | (147,980 | ) |  | (134,923 | )
Inventories | (3,529 | ) |  | (2,256 | ) |  | (4,798 | ) |  | 2,281 |
Prepaid expenses and other current assets | (29,355 | ) |  | (13,513 | ) |  | (33,637 | ) |  | (11,687 | )
Accounts payable and accrued expenses and other non-current liabilities | (55,848 | ) |  | 33,968 |  |  | 13,641 |  |  | 10,324 |
Billings in excess of costs and estimated earnings on uncompleted contracts | 48,020 |  |  | (48,465 | ) |  | 36,206 |  |  | (12,527 | )
Other, net | 12,624 |  |  | 3,875 |  |  | 18,842 |  |  | (999 | )
Net change in operating assets and liabilities, net of non-cash transactions | $ | (126,963 | ) |  | $ | (3,448 | ) |  | $ | (244,169 | ) |  | $ | 116,863 |
Schedule of Additional Supplemental Cash Flow Information | Additional supplemental cash flow information is as follows (in thousands):
| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Cash (paid) received during the period for — |  |  |  |  |  |  |  |  |
Interest paid related to continuing operations | $ | (4,044 | ) |  | $ | (3,066 | ) |  | $ | (7,506 | ) |  | $ | (5,507 | )
Income taxes paid related to continuing operations | $ | (93,279 | ) |  | $ | (27,038 | ) |  | $ | (101,496 | ) |  | $ | (33,524 | )
Income taxes paid related to discontinued operations | $ | — |  |  | $ | (437 | ) |  | $ | — |  |  | $ | (6,080 | )
Income tax refunds related to continuing operations | $ | 463 |  |  | $ | 785 |  |  | $ | 2,669 |  |  | $ | 1,679 |

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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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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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