Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 29, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 294,893	$ 625,408
Trade accounts and notes receivable, net of allowance for doubtful accounts of $908 and $860	212,729	183,434
Inventories	264,090	198,089
Deferred tax charges and refundable income taxes	25,191	18,012
Other current assets	24,043	32,665
Total current assets	820,946	1,057,608
Property, plant and equipment, net of accumulated depreciation of $456,412 and $427,766	393,706	359,523
Other assets:
Goodwill	542,235	359,688
Intangible assets, net of accumulated amortization of $326,051 and $281,439	323,379	182,430
Deferred tax assets and other noncurrent tax assets	11,735	9,103
Other	11,455	7,820
Total assets	2,103,456	1,976,172
Current liabilities:
Long-term debt, current maturities	0	100,000
Accounts payable	74,590	68,762
Accrued payroll and related benefits	60,896	64,860
Other accrued liabilities	55,389	34,514
Income taxes payable	20,137	22,835
Total current liabilities	211,012	290,971
Long-term debt, excluding current maturities, net of unamortized discount and debt issuance costs of $8,225 and $9,470	650,625	574,380
Pension benefit obligations and other liabilities	32,332	32,130
Deferred tax liabilities and other noncurrent tax liabilities	125,816	85,673
Commitments and contingent liabilities	0	0
Equity:
Preferred stock, par value $.01; 5,000,000 shares authorized; none issued and outstanding as of September 29, 2018 and December 31, 2017	0	0
Common stock, par value $.01; 400,000,000 shares authorized; issued and outstanding shares as of September 29, 2018: 141,607,335 and 141,404,935; issued and outstanding shares as of December 31, 2017: 141,282,539	1,416	1,413
Treasury stock, at cost: 202,400 and 0 shares held as of September 29, 2018 and December 31, 2017	(7,112)	0
Additional paid-in capital	864,809	867,699
Retained earnings	258,223	147,418
Accumulated other comprehensive loss	(33,665)	(23,512)
Total equity	1,083,671	993,018
Total liabilities and equity	$ 2,103,456	$ 1,976,172