Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Dec. 29, 2012
Current assets:
Cash and cash equivalents	$ 193,468	$ 105,426
Short-term investments	151,423	176,565
Accounts receivable, net of allowances for doubtful accounts of $720 at June 29, 2013 and $670 at December 29, 2012	68,635	78,023
Inventories	50,659	49,579
Deferred income taxes	16,387	16,652
Prepaid expenses and other current assets	46,356	41,437
Total current assets	526,928	467,682
Long-term investments	10,197	11,369
Property and equipment, net	135,006	135,271
Goodwill	130,265	130,265
Other intangible assets, net	85,115	90,750
Other assets, net	25,510	36,629
Total assets	913,021	871,966
Current liabilities:
Accounts payable	25,952	29,622
Current portion of long-term debt	5,000	5,000
Accrued expenses	36,012	40,410
Deferred income on shipments to distributors	30,552	30,259
Income taxes	926	1,087
Total current liabilities	98,442	106,378
Long-term debt	91,250	95,000
Other non-current liabilities	17,978	20,615
Total liabilities	207,670	221,993
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; 42,668 and 41,879 shares issued and outstanding at June 29, 2013 and December 29, 2012, respectively	4	4
Additional paid-in capital	32,837	10,122
Retained earnings	673,439	640,793
Accumulated other comprehensive loss	(929)	(946)
Total stockholders' equity	705,351	649,973
Total liabilities and stockholders' equity	$ 913,021	$ 871,966