Supplemental Cash Flow Information (Tables)

9 Months Ended

Sep. 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						Nine Months Ended
	September 30,						September 30,
	2017			2016			2017			2016
Accounts and notes receivable	$	(272,131	)	$	(177,832	)	$	(398,574	)	$	86,562
Costs and estimated earnings in excess of billings on uncompleted contracts	20,981			(35,075		)	(126,999		)	(169,998		)
Inventories	13,525			(12,405		)	8,727			(10,124		)
Prepaid expenses and other current assets	10,495			19,664			(23,142		)	7,977
Accounts payable and accrued expenses and other non-current liabilities	203,743			105,362			217,384			115,686
Billings in excess of costs and estimated earnings on uncompleted contracts	43,836			(78,306		)	80,042			(90,833		)
Other, net	(6,621		)	(6,486		)	12,221			(7,485		)
Net change in operating assets and liabilities, net of non-cash transactions	$	13,828		$	(185,078	)	$	(230,341	)	$	(68,215	)

Schedule of Additional Supplemental Cash Flow Information

Additional supplemental cash flow information is as follows (in thousands):



	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2017			2016			2017			2016
Cash (paid) received during the period for —
Interest paid related to continuing operations	$	(5,808	)	$	(3,344	)	$	(13,314	)	$	(8,851	)
Income taxes paid related to continuing operations	$	(3,616	)	$	(21,799	)	$	(105,112	)	$	(55,323	)
Income taxes paid related to discontinued operations	$	—		$	—		$	—		$	(6,080	)
Income tax refunds related to continuing operations	$	5,058		$	2,554		$	7,727		$	4,233