CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ (16,567)	$ 471,323
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	93,864	89,681
Amortization	24,721	11,941
Deferred income tax expense	2,346	11,500
Equity income of unconsolidated entities, net	(176)	(151)
Dividends from unconsolidated entities	0	125
Gain on sale from discontinued business	(18,371)	(527,980)
Loss on early extinguishment of debt	0	5,314
Other, net	(336)	2,187
Changes in assets and liabilities, net of acquisitions and dispositions of businesses:
Accounts receivable	26,308	(12,395)
Increase (Decrease) in Income Taxes Receivable	(11,168)	0
Inventories	(11,801)	(43,477)
Contract assets	(26,775)	(5,269)
Right-of-use assets	18,195	11,204
Accounts payable	(1,488)	5,615
Accrued interest payable	(9,984)	7,398
Accrued compensation	1,795	(12,802)
Advances on contracts	19,145	(17,067)
Operating lease liabilities	(17,864)	(10,919)
Retirement plan liabilities, net	(23,902)	(18,800)
Income taxes payable - Gain on sale of discontinued businesses	(10,342)	102,940
Other assets and liabilities	4,676	(20,339)
Net cash provided by operating activities	42,276	50,029
Cash flows from investing activities:
Purchases of property, plant and equipment	(79,096)	(147,071)
Purchases of businesses, net of cash acquired	(432,855)	(623,495)
Proceeds from Divestiture of Businesses	37,219	599,685
Proceeds from sales of assets	4,473	7,560
Expenditures for intangible assets	(169)	(1,246)
Net proceeds from settlement of foreign currency forward exchange contracts	536	1,453
Payments for interest rate swap terminations	0	(2,758)
Other investing activities, net	(197)	0
Net cash used by investing activities	(470,089)	(165,872)
Cash flows from financing activities:
Short-term borrowings, net	1,712	(1,417)
Current maturities and long-term debt:
Additions	580,903	781,987
Reductions	(111,999)	(604,616)
Dividends paid to noncontrolling interests	0	(3,103)
Sale of noncontrolling interests	0	4,026
Common stock acquired for treasury	0	(25,752)
Stock-based compensation - Employee taxes paid	(4,188)	(11,202)
Payment of contingent consideration	(2,342)	0
Deferred financing costs	(1,928)	(11,073)
Other financing activities, net	(1,368)	0
Net cash provided by financing activities	460,790	128,850
Effect of exchange rate changes on cash and cash equivalents, including restricted cash	(6,567)	(2,234)
Net increase in cash and cash equivalents, including restricted cash	26,410	10,773
Cash and cash equivalents, including restricted cash, at beginning of period	59,732	67,146
Cash and cash equivalents, including restricted cash, at end of period	86,142	77,919
Change in accrual for purchases of property, plant and equipment included in accounts payable	$ 3,060	$ 5,917