Supplementary Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended									12 Months Ended
	Jul. 02, 2021	Apr. 02, 2021	Jan. 01, 2021	Oct. 02, 2020	Jul. 03, 2020	Mar. 27, 2020	Dec. 27, 2019	Sep. 27, 2019	Sep. 30, 2018	Jul. 02, 2021	Jul. 03, 2020	Jun. 30, 2019
Unaudited consolidated quarterly statements of operations data
Net revenues	$ 250,842	$ 256,857	$ 210,676	$ 205,621	$ 217,377	$ 208,016	$ 193,913	$ 177,304		$ 923,996	$ 796,610	$ 654,744
Gross margin	102,779	105,623	88,667	88,119	96,613	93,325	88,506	78,400		385,188	356,844	286,156
Income from operations	22,406	21,712	18,113	18,770	26,419	26,342	20,825	17,476		81,001	91,062	76,584
Income before income taxes	21,061	20,997	17,119	17,996	26,990	28,928	20,786	17,229		77,173	93,933	59,527
Income tax provision	3,136	5,362	4,433	2,198	(234)	5,363	5,110	(2,018)		15,129	8,221	12,752
Net income	$ 17,925	$ 15,635	$ 12,686	$ 15,798	$ 27,224	$ 23,565	$ 15,676	$ 19,247		$ 62,044	$ 85,712	$ 46,775
Earnings Per Share [Abstract]
Basic net income per share (in dollars per share)	$ 0.32	$ 0.28	$ 0.23	$ 0.29	$ 0.50	$ 0.43	$ 0.29	$ 0.35		$ 1.13	$ 1.57	$ 0.98
Diluted net income per share (in dollars per share)	$ 0.32	$ 0.28	$ 0.23	$ 0.29	$ 0.49	$ 0.43	$ 0.29		$ 0.35	$ 1.12	$ 1.56	$ 0.96