Stock-Based Compensation Plans (Details 2) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 29, 2014		Mar. 30, 2013	Mar. 31, 2012	Apr. 02, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, closing price per share	$ 53.84
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Vested	4,935		11,639
Number of Shares, Expected to vest	326
Number of Shares, Total vested and expected to vest	5,261
Number of Shares, Total outstanding	5,280		12,753	17,788	24,969
Weighted-Average Exercise Price Per Share, Vested (in dollars per share)	$ 24.87		$ 28.07
Weighted-Average Exercise Price Per Share, Expected to vest (in dollars per share)	$ 30.36
Weighted-Average Exercise Price Per Share, Total vested and expected to vest (in dollars per share)	$ 25.21
Weighted-Average Exercise Price Per Share, Total outstanding (in dollars per share)	$ 25.22		$ 28.01	$ 28.32	$ 29.11
Weighted-Average Remaining Contractual Term, Vested (in years)	2 years 2 months 13 days
Weighted Average Remaining Contractual Term, Expected to vest (in years)	4 years 1 month 6 days
Weighted Average Remaining Contractual Term, Total vested and expected to vest (in years)	2 years 3 months 19 days
Weighted Average Remaining Contractual Term, Total outstanding (in years)	2 years 3 months 19 days
Aggregate Intrinsic Value, Vested	$ 142,968	[1]
Aggregate Intrinsic Value, Expected to vest	7,648	[1]
Aggregate Intrinsic Value, Total vested and expected to vest	150,616	[1]
Aggregate Intrinsic Value, Total outstanding	$ 151,139	[1]

[1] These amounts represent the difference between the exercise price and $53.84, the closing price per share of Xilinx’s stock on March 29, 2014, for all in-the-money options outstanding.