Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 01, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 225,399	$ 141,106
Short-term investments	396,327	153,961
Accounts receivable, net	75,852	74,401
Inventories	61,308	59,578
Prepaid expenses and other current assets	54,360	61,805
Total current assets	813,246	490,851
Long-term investments	5,257	5,196
Property and equipment, net	130,635	129,559
Goodwill	288,629	276,130
Other intangible assets, net	103,638	103,565
Other assets, net	58,021	76,543
Total assets	1,399,426	1,081,844
Current liabilities:
Accounts payable	43,781	39,577
Accrued expenses	47,416	50,100
Deferred income on shipments to distributors	49,700	45,568
Income taxes	4,396	4,450
Total current liabilities	145,293	139,695
Long-term debt		72,500
Convertible debt	332,502
Other non-current liabilities	42,797	42,691
Total liabilities	520,592	254,886
Commitments and contingencies
Stockholders' equity:
Preferred stock-$0.0001 par value; 10,000 shares authorized; no shares issued and outstanding
Common stock - $0.0001 par value; 250,000 shares authorized; 42,348 and 41,889 shares issued and outstanding at April 1,2017 and Deceber 31, 2016, respectively	4	4
Additional paid-in capital	59,714	24,463
Retained earnings	819,641	801,999
Accumulated other comprehensive income (loss)	(525)	492
Total stockholders' equity	878,834	826,958
Total liabilities and stockholders' equity	$ 1,399,426	$ 1,081,844