Acquisitions (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2013	Dec. 30, 2012	Feb. 21, 2013 Verinata [Member]
Business Acquisition [Line Items]
Cash and cash equivalents			$ 9,151
Accounts receivable			2,801
Inventory			1,110
Prepaid expenses and other current assets			979
Property and equipment			12,083
Other assets			978
Intangible assets			176,490
Goodwill	723,061	369,327	227,453
Accounts payable			(2,539)
Accrued liabilities			(3,803)
Lease financing obligation			(9,695)
Deferred tax liability			(18,741)
Total purchase price			$ 396,267