SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Mar. 31, 2018
Provision for doubtful accounts and sales allowances
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 4,956	$ 873	$ 603
SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired	0	3,928	0
Charged to Expenses or Other Accounts	(2,297)	4,332	784
Deductions	(518)	(4,176)	(514)
Balance at End of Year	2,141	4,956	873
Provision for returns
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	0	10,225	10,541
SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired	0	(10,225)	0
Charged to Expenses or Other Accounts	0	0	30,472
Deductions	0	0	(30,788)
Balance at End of Year	0	0	10,225
Provision for promotions and rebates
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	123,053	38,284	31,747
SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired	(224)	44,136	0
Charged to Expenses or Other Accounts	441,250	417,422	183,929
Deductions	(452,705)	(376,789)	(177,392)
Balance at End of Year	111,374	123,053	38,284
Valuation allowance for deferred tax assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	15,787	2,514	2,209
SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired	0	8,068
Charged to Expenses or Other Accounts	71,561	7,469	981
Deductions	(5,912)	(2,264)	(676)
Balance at End of Year	$ 81,436	$ 15,787	$ 2,514