Quarterly report pursuant to Section 13 or 15(d)

Supplemental Cash Flow Information - Schedule of Effect of Changes in Operating Assets and Liabilities, Net Of Non-Cash Transactions, On Cash Flows From Operating Activities of Continuing Operations (Detail)

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Supplemental Cash Flow Information - Schedule of Effect of Changes in Operating Assets and Liabilities, Net Of Non-Cash Transactions, On Cash Flows From Operating Activities of Continuing Operations (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Supplemental Cash Flow Elements [Abstract]    
Accounts and notes receivable $ (94,838) $ 158,995
Costs and estimated earnings in excess of billings on uncompleted contracts (80,710) (52,467)
Inventories (1,269) 4,537
Prepaid expenses and other current assets (4,282) 1,826
Accounts payable and accrued expenses and other non-current liabilities 69,489 (23,644)
Billings in excess of costs and estimated earnings on uncompleted contracts (11,814) 35,938
Other, net 6,218 (4,874)
Net change in operating assets and liabilities, net of non-cash transactions $ (117,206) $ 120,311