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Summary of Significant Accounting Policies - Topic 606 (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Dec. 30, 2017
Balance Sheet Related Disclosures [Abstract]          
Accounts receivable $ (101,024)   $ (101,024)   $ (118,532)
Inventories (92,952)   (92,952)   (92,259)
Other current assets 48,283   48,283   33,601
Deferred costs and other contract assets 119,523   119,523   109,256
Deferred tax assets         (19,981)
Other non-current assets (3,859)   (3,859)   (4,668)
Accrued and other liabilities (4,727)   (4,727)   (4,022)
Deferred revenue and other contract liabilities, current (35,592)   (35,592)   (32,105)
Retained earnings 884,138   884,138   737,955
Income Statement [Abstract]          
Product revenue 202,068 $ 179,696 608,461 $ 541,889  
Royalty and other revenue 8,515 13,664 26,696 40,420  
Cost of goods sold 69,830 69,295 208,596 198,929  
Selling, general and administrative 72,670 65,704 215,263 198,460  
Provision (benefit) for income taxes (7,457) 7,495 11,609 7,856  
Net income $ 57,126 $ 35,853 $ 146,609 $ 132,524  
Net income per basic share $ 1.09 $ 0.69 $ 2.78 $ 2.57  
Net income per diluted share $ 1.02 $ 0.64 $ 2.59 $ 2.37  
Statement of Cash Flows [Abstract]          
Increase in inventories     $ (1,069) $ (26,354)  
Decrease in other current assets     (15,606) (9,095)  
Decrease in deferred costs and other contract assets     (10,400) (9,175)  
Increase in other non-current assets     496 (3,525)  
Increase in accrued liabilities     5,695 393  
Decrease in income taxes payable     410 (71,177)  
Increase (decrease) in deferred revenue and other contract-related liabilities     $ 3,981 (11,039)  
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 liabilities, current         (35,929)
Retained earnings         720,842
Income Statement [Abstract]          
Product revenue   $ 181,271   542,170  
Royalty and other revenue   12,421   30,757  
Cost of goods sold   65,027   191,692  
Selling, general and administrative   65,390   197,339  
Provision (benefit) for income taxes   9,027   8,108  
Net income   $ 39,235   $ 131,248  
Net income per basic share   $ 0.75   $ 2.55  
Net income per diluted share   $ 0.70   $ 2.35  
Statement of Cash Flows [Abstract]          
Increase in inventories       $ (25,998)  
Decrease in other current assets       (11,099)  
Decrease in deferred costs and other contract assets       (16,166)  
Increase in other non-current assets       (964)  
Increase in accrued liabilities       (66,918)  
Decrease in income taxes payable       0  
Increase (decrease) in deferred revenue and other contract-related liabilities       (5,905)  
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 liabilities, current         (3,824)
Retained earnings         $ 17,113
Income Statement [Abstract]          
Product revenue   $ (1,575)   (281)  
Royalty and other revenue   1,243   9,663  
Cost of goods sold   4,268   7,237  
Selling, general and administrative   314   1,121  
Provision (benefit) for income taxes   (1,532)   (252)  
Net income   $ (3,382)   $ 1,276  
Net income per basic share   $ (0.06)   $ 0.02  
Net income per diluted share   $ (0.06)   $ 0.02  
Statement of Cash Flows [Abstract]          
Increase in inventories       $ (356)  
Decrease in other current assets       2,004  
Decrease in deferred costs and other contract assets       6,991  
Increase in other non-current assets       (2,561)  
Increase in accrued liabilities       67,311  
Decrease in income taxes payable       (71,177)  
Increase (decrease) in deferred revenue and other contract-related liabilities       $ (5,134)