Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 30, 2017
Current assets:
Cash and cash equivalents	$ 194,864	$ 269,366
Short-term investments	347,416	494,657
Accounts receivable, net	93,830	71,367
Inventories	87,163	73,132
Prepaid expenses and other current assets	52,642	39,120
Total current assets	775,915	947,642
Property and equipment, net	132,021	127,682
Goodwill	396,689	288,227
Other intangible assets, net	192,601	83,144
Other assets, net	95,385	88,387
Total assets	1,592,611	1,535,082
Current liabilities:
Accounts payable	40,323	38,851
Deferred revenue and returns liability	24,503
Deferred income on shipments to distributors		50,115
Other current liabilities	74,254	73,359
Total current liabilities	139,080	162,325
Convertible debt	348,233	341,879
Other non-current liabilities	76,830	77,862
Total liabilities	564,143	582,066
Commitments and contingencies
Stockholders' equity:
Preferred stock - $0.0001 par value; 10,000 shares authorized; no shares issued
Common stock - $0.0001 par value; 250,000 shares authorized; 43,350 and 42,707 shares issued and outstanding at June 30, 2018 and December 30, 2017, respectively	4	4
Additional paid-in capital	111,984	102,862
Retained earnings	918,440	851,307
Accumulated other comprehensive loss	(1,960)	(1,157)
Total stockholders' equity	1,028,468	953,016
Total liabilities and stockholders' equity	$ 1,592,611	$ 1,535,082