Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 28, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 341,387	$ 389,699
Short-term investments	3,187	4,601
Trade accounts and notes receivable, net of allowance for doubtful accounts of $1,451 and $1,827	184,734	153,961
Inventories	166,227	163,125
Deferred tax assets, deferred tax charges and refundable income taxes	30,622	30,556
Other current assets	20,192	23,713
Total current assets	746,349	765,655
Property, plant and equipment, net of accumulated depreciation of $324,384 and $315,949	313,081	313,569
Goodwill	347,605	340,743
Other assets:
Intangible assets, net of accumulated amortization of $158,842 and $146,535	296,021	308,554
Deferred tax assets and other noncurrent tax assets	4,986	5,068
Other	24,762	28,502
Total assets	1,732,804	1,762,091
Current liabilities:
Long-term Debt, Current Maturities	75,000	100,000
Accounts payable	55,950	57,417
Accrued payroll and related benefits	34,251	51,164
Interest payable	14,086	5,561
Other accrued liabilities	32,125	34,826
Deferred tax liabilities and income taxes payable	16,631	13,552
Total current liabilities	228,043	262,520
Long-term debt, excluding current maturities	666,949	666,796
Pension benefit obligations and other liabilities	27,266	25,373
Deferred tax liabilities and other noncurrent tax liabilities	56,031	58,961
Commitments and contingent liabilities
Equity:
Preferred stock, par value $.01; 5,000,000 shares authorized; none issued and outstanding as of March 28, 2015 and December 31, 2014	0	0
Common stock, par value $.01; 400,000,000 shares authorized; issued and outstanding shares as of March 28, 2015 and December 31, 2014: 140,235,651 and 139,792,583	1,402	1,398
Additional paid-in capital	831,286	830,430
Retained deficit	(65,840)	(80,712)
Accumulated other comprehensive loss	(12,333)	(2,675)
Total equity	754,515	748,441
Total liabilities and equity	$ 1,732,804	$ 1,762,091