Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2018

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 effects of changes in operating assets and liabilities, net of non-cash transactions, on cash flows from operating activities are as follows (in thousands):



	Three Months Ended
	March 31,
	2018			2017
Accounts and notes receivable	$	(131,712	)	$	(94,838	)
Contract assets	(6,184		)	(80,710		)
Inventories	(13,682		)	(1,269		)
Prepaid expenses and other current assets	(18,742		)	(4,282		)
Accounts payable and accrued expenses and other non-current liabilities	(27,211		)	68,767
Contract liabilities	77,274			(11,814		)
Other, net	2,663			7,046
Net change in operating assets and liabilities, net of non-cash transactions	$	(117,594	)	$	(117,100	)

Schedule of Additional Supplemental Cash Flow Information

A reconciliation of cash, cash equivalents, and restricted cash reported within the condensed consolidated balance sheets that sum to the total of such amounts shown in the statements of cash flows are as follows (in thousands).



	March 31,
	2018		2017
Cash and cash equivalents	$	101,736	$	106,514
Restricted cash included in “Prepaid expenses and other current assets”	3,160		591
Restricted cash included in “Other assets, net”	384		427
Total cash, cash equivalents, and restricted cash reported in the statements of cash flows	$	105,280	$	107,532



	December 31,
	2017		2016
Cash and cash equivalents	138,285		$	112,183
Restricted cash included in “Prepaid expenses and other current assets”	5,106		1,709
Restricted cash included in “Other assets, net”	384		518
Total cash, cash equivalents, and restricted cash reported in the statements of cash flows	$	143,775	$	114,410

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



	Three Months Ended
	March 31,
	2018			2017
Cash (paid) received during the period for —
Interest paid	$	(5,960	)	$	(3,462	)
Income taxes paid	$	(17,957	)	$	(8,217	)
Income tax refunds	$	1,018		$	2,206