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Summary of Significant Accounting Policies - Topic 606 (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Dec. 30, 2017
Balance Sheet Related Disclosures [Abstract]          
Accounts receivable $ (98,290)   $ (98,290)   $ (118,532)
Inventories (90,848)   (90,848)   (92,259)
Other current assets 35,085   35,085   33,601
Deferred costs and other contract assets 116,986   116,986   109,256
Deferred tax assets         (19,981)
Other non-current assets (4,281)   (4,281)   (4,668)
Accrued and other liabilities (3,752)   (3,752)   (2,924)
Deferred revenue and other contract-related liabilities, current (34,990)   (34,990)   (32,105)
Retained earnings 827,013   827,013   737,955
Income Statement [Abstract]          
Product 202,004 $ 179,727 406,393 $ 362,193  
Royalty and other revenue 9,617 12,579 18,181 26,756  
Cost of goods sold 69,474 65,405 138,766 129,634  
Selling, general and administrative 71,418 66,670 142,593 132,756  
Provision (benefit) for income taxes 9,164 (1,131) 19,066 361  
Net income $ 43,853 $ 45,138 $ 89,483 $ 96,671  
Net income per basic share $ 0.84 $ 0.87 $ 1.72 $ 1.89  
Net income per diluted share $ 0.79 $ 0.80 $ 1.60 $ 1.73  
Statement of Cash Flows [Abstract]          
Increase in inventories     $ 1,075 $ (15,615)  
Increase (decrease) in other current assets     (1,694) (14,121)  
Increase in deferred costs and other contract assets     (7,809) (12,871)  
(Increase) decrease in other non-current assets     430 871  
Increase in accrued liabilities     1,776 3,600  
Decrease in income taxes payable     (895) (71,496)  
Increase (decrease) in deferred revenue and other contract-related liabilities     $ 3,397 (8,424)  
Increase in other non-current liabilities       985  
As Previously Reported          
Balance Sheet Related Disclosures [Abstract]          
Accounts receivable         (121,309)
Inventories         (95,944)
Other current assets         31,563
Deferred costs and other contract assets         99,600
Deferred tax assets         (23,898)
Other non-current assets         (10,782)
Deferred revenue and other contract-related liabilities, current         (35,929)
Retained earnings         720,842
Income Statement [Abstract]          
Product   $ 182,802   360,899  
Royalty and other revenue   10,131   18,336  
Cost of goods sold   64,496   126,664  
Selling, general and administrative   66,377   131,949  
Provision (benefit) for income taxes   346   (919)  
Net income   $ 46,680   $ 92,014  
Net income per basic share   $ 0.90   $ 1.80  
Net income per diluted share   $ 0.83   $ 1.65  
Statement of Cash Flows [Abstract]          
Increase in inventories       $ (15,554)  
Increase (decrease) in other current assets       (14,694)  
Increase in deferred costs and other contract assets       (13,700)  
(Increase) decrease in other non-current assets       (1,288)  
Increase in accrued liabilities       (67,641)  
Decrease in income taxes payable       0  
Increase (decrease) in deferred revenue and other contract-related liabilities       327  
Increase in other non-current liabilities       985  
Adjustments          
Balance Sheet Related Disclosures [Abstract]          
Accounts receivable         (2,777)
Inventories         (3,685)
Other current assets         2,038
Deferred costs and other contract assets         9,656
Deferred tax assets         (3,917)
Other non-current assets         (6,114)
Deferred revenue and other contract-related liabilities, current         (3,824)
Retained earnings         $ 17,113
Income Statement [Abstract]          
Product   $ (3,075)   1,294  
Royalty and other revenue   2,448   8,420  
Cost of goods sold   909   2,970  
Selling, general and administrative   293   807  
Provision (benefit) for income taxes   (1,477)   1,280  
Net income   $ (1,542)   $ 4,657  
Net income per basic share   $ (0.03)   $ 0.09  
Net income per diluted share   $ (0.03)   $ 0.08  
Statement of Cash Flows [Abstract]          
Increase in inventories       $ (61)  
Increase (decrease) in other current assets       573  
Increase in deferred costs and other contract assets       829  
(Increase) decrease in other non-current assets       2,159  
Increase in accrued liabilities       71,241  
Decrease in income taxes payable       (71,496)  
Increase (decrease) in deferred revenue and other contract-related liabilities       (8,751)  
Increase in other non-current liabilities       $ 0