Balance Sheet Components



	December 31,
	2014		2013
	(In thousands)
RECEIVABLES
Customers	$	260,412	$	255,992
Other	2,589		3,075
Total	263,001		259,067
Less allowance for doubtful accounts	6,961		5,841
Total receivables — net	$	256,040	$	253,226
INVENTORIES
Raw materials and components parts	$	137,584	$	133,470
Work in process	37,178		41,895
Finished goods	62,869		55,602
Total	$	237,631	$	230,967
PROPERTY, PLANT AND EQUIPMENT
Land and improvements	$	31,121	$	32,723
Buildings and improvements	148,749		150,316
Machinery, equipment and other	311,036		300,858
Office and transportation equipment	98,279		95,923
Construction in progress	14,335		9,201
Total	603,520		589,021
Less accumulated depreciation and amortization	383,977		375,533
Total property, plant and equipment — net	$	219,543	$	213,488
ACCRUED EXPENSES
Payroll and related items	$	64,124	$	63,297
Management incentive compensation	21,567		20,949
Income taxes payable	9,305		11,746
Insurance	10,058		7,741
Warranty	7,196		4,888
Deferred revenue	11,813		9,455
Restructuring	6,056		—
Liability for uncertain tax positions	2,084		1,201
Accrued interest	1,738		1,354
Other	29,468		30,120
Total accrued expenses	$	163,409	$	150,751
OTHER NONCURRENT LIABILITIES
Pension and retiree medical obligations	$	90,584	$	67,777
Liability for uncertain tax positions	2,471		4,624
Deferred revenue	4,612		5,578
Other	16,610		15,087
Total other noncurrent liabilities	$	114,277	$	93,066

The following table presents the valuation and qualifying account activity for the years ended December 31, 2014, 2013 and 2012:



	2014			2013			2012
	(In thousands)
ALLOWANCE FOR DOUBTFUL ACCOUNTS ⁽¹⁾
Beginning balance January 1	$	5,841		$	5,596		$	5,860
Charged to costs and expenses, net of recoveries	2,643			2,288			653
Utilization	(1,195		)	(1,921		)	(1,151		)
Currency translation and other	(328		)	(122		)	234
Ending balance December 31	$	6,961		$	5,841		$	5,596


(1)	Includes provision for doubtful accounts, sales returns and sales discounts granted to customers.