Revenues - Product Line Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 27, 2021	Dec. 26, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 27, 2021	Mar. 28, 2020	Mar. 30, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 293,537	$ 485,795	$ 347,325	$ 242,573	$ 279,291	$ 374,668	$ 388,912	$ 238,253	$ 1,369,230	$ 1,281,124	$ 1,185,524
Portable Products
Disaggregation of Revenue [Line Items]
Net sales									1,234,498	1,146,918	1,032,049
Non-Portable and Other Products
Disaggregation of Revenue [Line Items]
Net sales									134,732	134,206	153,475
Operating Segments | Audio Products
Disaggregation of Revenue [Line Items]
Net sales									1,104,060	1,109,958	1,040,866
Operating Segments | High-Performance Mixed-Signal Products
Disaggregation of Revenue [Line Items]
Net sales									265,170	171,166	144,658
Operating Segments | Portable Products | Audio Products
Disaggregation of Revenue [Line Items]
Net sales									998,445	1,009,933	922,608
Operating Segments | Portable Products | High-Performance Mixed-Signal Products
Disaggregation of Revenue [Line Items]
Net sales									236,053	136,985	109,441
Operating Segments | Non-Portable and Other Products | Audio Products
Disaggregation of Revenue [Line Items]
Net sales									105,615	100,025	118,258
Operating Segments | Non-Portable and Other Products | High-Performance Mixed-Signal Products
Disaggregation of Revenue [Line Items]
Net sales									$ 29,117	$ 34,181	$ 35,217