Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2021

Supplemental Cash Flow Information [Abstract]

Consolidated statements of cash flows

The changes in assets and liabilities included in operating cash flow follow:

	Year Ended December 31,
(in thousands)	2021		2020		2019
(Increase) decrease in:
Accounts and notes receivable, net	$	5,393	$	138,388	$	210,419
Contract assets	(178,632)		280,360		207,467
Other current assets	(167,416)		3,893		(80,248)
Other assets	283,895		76,613		44,707
Increase (decrease) in:
Accounts payable	6,360		(343,113)		(46,873)
Contract liabilities	(175,812)		(53,580)		202,359
Accrued liabilities	108,896		(11,829)		29,880
Other liabilities	(79,336)		(59,684)		63,986
Increase (decrease) in cash due to changes in assets and liabilities	$	(196,652)	$	31,048	$	631,697
Cash paid during the year for:
Interest	$	90,299	$	65,641	$	71,938
Income taxes (net of refunds)	74,589		65,188		204,080

Our cash flow information for 2021, 2020 and 2019 included the following activities related to Disc Ops:

	Year Ended December 31,
(in thousands)	2021						2020						2019
	Stork		AMECO		Total		Stork		AMECO		Total		Stork		AMECO		Total
Impairment expense	$	193,200	$	53,085	$	246,285	$	195,239	$	145,700	$	340,939	$	64,335	$	32,428	$	96,763
Depreciation of fixed assets	5,417		—		5,417		21,849		—		21,849		24,203		54,568		78,771
Amortization of stock-based awards	—		—		—		—		56		56		—		123		123
Capital expenditures	(16,861)		(11,019)		(27,880)		(21,087)		(26,913)		(48,000)		(28,185)		(73,433)		(101,618)