Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Income Statement [Abstract]    
Net sales $ 825,400 $ 935,036
Operating costs and expenses:    
Cost of sales 532,196 597,325
Selling, general and administrative 125,671 113,028
Research and development 27,736 31,870
Amortization of purchased intangible assets 44,786 44,298
Restructuring costs, net 1,871 1,980
Total operating costs and expenses 732,260 788,501
Operating income 93,140 146,535
Other income (expense), net 2,627 (3,195)
Interest expense (36,329) (42,280)
Interest income 1,029 1,104
Income before income taxes 60,467 102,164
Income tax expense (20,991) (37,677)
Net income 39,476 64,487
Earnings per share:    
Basic $ 0.21 $ 0.35
Diluted $ 0.20 $ 0.34
Weighted average shares outstanding:    
Basic 188,480 185,942
Diluted 193,137 190,922
Comprehensive income:    
Net income 39,476 64,487
Other comprehensive income (loss), net of tax:    
Foreign currency translation gain (loss) (29,488) 1,627
Pension and other postretirement benefit activity (1,587) (1,551)
Available-for-sale securities (2,989)  
Total other comprehensive income (loss), net of tax (34,064) 76
Total comprehensive income $ 5,412 $ 64,563