Details of Certain Consolidated Balance Sheet Captions (Tables)

12 Months Ended

Dec. 31, 2017

Details of Certain Consolidated Balance Sheet Captions [Abstract]

Accounts Receivable, net

Accounts receivable, net were:

	December 31,
	2017			2016
	(Amounts in thousands)
Accounts receivable	$	915,824		$	934,558
Less: allowance for doubtful accounts	(59,113		)	(51,920		)
Accounts receivable, net	$	856,711		$	882,638

Property, Plant and Equipment, net

Property, plant and equipment, net were:

	December 31,
	2017			2016
	(Amounts in thousands)
Land	$	84,551		$	81,022
Buildings and improvements	470,354			442,756
Machinery, equipment and tooling	682,316			669,639
Software, furniture and fixtures and other	402,608			413,540
Gross property, plant and equipment(1)	1,639,829			1,606,957
Less: accumulated depreciation	(968,033		)	(882,152		)
Property, plant and equipment, net	$	671,796		$	724,805

Accrued Liabilities

Accrued liabilities were:

	December 31,
	2017		2016
	(Amounts in thousands)
Wages, compensation and other benefits	$	180,717	$	148,481
Commissions and royalties	23,240		27,767
Customer advance payments	273,127		253,325
Progress billings in excess of accumulated costs	4,411		7,052
Warranty costs and late delivery penalties	53,027		48,946
Sales and use tax	14,830		14,969
Income tax	27,862		15,755
Other	146,982		164,691
Accrued liabilities	$	724,196	$	680,986

Retirement Obligations and Other Liabilities

Retirement obligations and other liabilities were:

	December 31,
	2017		2016
	(Amounts in thousands)
Pension and postretirement benefits	$	203,640	$	216,772
Deferred taxes	156,276		20,086
Legal and environmental	25,996		32,546
Uncertain tax positions and other tax liabilities	72,711		93,524
Other	38,331		44,911
Retirement obligations and other liabilities	$	496,954	$	407,839