Operating Segment, Geographic Information and Significant Customers - Net Revenue by Platform (Details) - USD ($) $ 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	Jul. 02, 2021	Jul. 03, 2020	Jun. 30, 2019
Revenue from External Customer [Line Items]
Net revenues	$ 250,842	$ 256,857	$ 210,676	$ 205,621	$ 217,377	$ 208,016	$ 193,913	$ 177,304	$ 923,996	$ 796,610	$ 654,744
Airborne
Revenue from External Customer [Line Items]
Net revenues									416,877	397,553	306,412
Land
Revenue from External Customer [Line Items]
Net revenues									182,591	102,956	83,034
Naval
Revenue from External Customer [Line Items]
Net revenues									187,205	166,912	136,966
Other
Revenue from External Customer [Line Items]
Net revenues									$ 137,323	$ 129,189	$ 128,332