Business Combinations (Details) (USD $)	12 Months Ended			0 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Mar. 31, 2013	Jul. 19, 2012	Apr. 30, 2012	Apr. 16, 2012	Dec. 19, 2012
Business Acquisition
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Payments to acquire businesses	$ 0	$ 0	$ 68,341,000
Payment	1,600,000	5,130,000	0
PLX Technology
Business Acquisition
Preferred stock, par value (in dollars per share)							$ 0.001
Acquisition-related costs incurred			10,700,000
NXP B.V
Business Acquisition
Acquisition-related costs incurred			3,900,000
Consideration Transferred				31,200,000
Accrued liabilities				4,000,000
Total purchase price				27,200,000
Fox Enterprises
Business Acquisition
Acquisition-related costs incurred		200,000
Total purchase price					28,900,000
Payments to acquire businesses					25,700,000
Contingent consideration liability					3,200,000
Contingent consideration liability, high end of range					4,000,000.0
Contingent consideration period after acquisition date					1 year
Payment					3,300,000
Alvand Technologies
Business Acquisition
Total purchase price						23,300,000
Payments to acquire businesses						20,500,000
Contingent consideration liability		2,100,000	3,300,000			2,800,000
Contingent consideration liability, high end of range						4,000,000.0
Contingent consideration period after acquisition date						3 years
Payment	1,600,000	1,800,000
Change in amount of contingent consideration liability		600,000	500,000
Release of of contingent consideration	$ 500,000