Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Accumulated Other Comprehensive (Loss) Income	Accumulated Deficit
Beginning Balance at Mar. 28, 2015	$ 6,173,160	$ 6,584,247	$ (124)	$ (410,963)
Beginning Balance, Shares at Mar. 28, 2015	149,059
Net loss	$ (28,845)	0	0	(28,845)
Other comprehensive income (loss)	(3,009)	0	(3,009)	0
Exercise of stock options and vesting of restricted stock units, net of shares withheld for employee taxes	$ 4,406	4,406	0	0
Exercise of stock options and vesting of restricted stock units, net of shares withheld for employee taxes, Shares	2,156
Issuance of common stock in connection with employee stock purchase plan	$ 17,967	17,967	0	0
Issuance of common stock in connection with employee stock purchase plan, Shares	429
Tax benefit from exercised stock options	$ 636	636	0	0
Repurchase of common stock, including transaction costs	$ (1,300,009)	(1,300,009)	0	0
Repurchase of common stock, including transaction costs, Shares	(24,258)
Stock-based compensation expense	$ 135,366	135,366	0	0
Ending Balance at Apr. 02, 2016	$ 4,999,672	5,442,613	(3,133)	(439,808)
Ending Balance, Shares at Apr. 02, 2016	127,386
Net loss	$ (16,558)	0	0	(16,558)
Other comprehensive income (loss)	(1,173)	0	(1,173)	0
Exercise of stock options and vesting of restricted stock units, net of shares withheld for employee taxes	$ 16,832	16,832	0	0
Exercise of stock options and vesting of restricted stock units, net of shares withheld for employee taxes, Shares	2,484
Issuance of common stock in connection with employee stock purchase plan	$ 25,640	25,640	0	0
Issuance of common stock in connection with employee stock purchase plan, Shares	678
Tax deficiency from exercised stock options	$ 56	56	0	0
Repurchase of common stock, including transaction costs	$ (209,357)	(209,357)	0	0
Repurchase of common stock, including transaction costs, Shares	(4,084)
Stock-based compensation expense	$ 81,722	81,722	0	0
Ending Balance at Apr. 01, 2017	$ 4,896,722	5,357,394	(4,306)	(456,366)
Ending Balance, Shares at Apr. 01, 2017	126,464
Net loss	$ (40,288)	0	0	(40,288)
Other comprehensive income (loss)	1,554	0	1,554	0
Exercise of stock options and vesting of restricted stock units, net of shares withheld for employee taxes	$ 4,735	4,735	0	0
Exercise of stock options and vesting of restricted stock units, net of shares withheld for employee taxes, Shares	2,246
Issuance of common stock in connection with employee stock purchase plan	$ 28,064	28,064	0	0
Issuance of common stock in connection with employee stock purchase plan, Shares	541
Tax deficiency from exercised stock options		0	0
Cumulative-effect adoption of ASU 2016-09	$ 36,684			36,684
Cumulative-effect adoption of ASU 2016-16	1,201			1,201
Repurchase of common stock, including transaction costs	$ (219,907)	(219,907)	0	0
Repurchase of common stock, including transaction costs, Shares	(2,929)
Stock-based compensation expense	$ 66,799	66,799	0	0
Ending Balance at Mar. 31, 2018	$ 4,775,564	$ 5,237,085	$ (2,752)	$ (458,769)
Ending Balance, Shares at Mar. 31, 2018	126,322