Geographic Information, Product Groups and Customer Concentration - Revenues by Geographical Area (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jun. 30, 2018	Jul. 01, 2017	Jul. 02, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 120,944	$ 127,293	$ 139,335	$ 155,598	$ 149,380	$ 162,182	$ 153,914	$ 135,492	$ 543,170	$ 600,968	$ 407,914
Total Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									259,958	362,446	216,878
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									169,825	227,897	167,229
Thailand
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									64,206	97,808	11,161
Malaysia
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									5,461	20,965	31,823
Other Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									20,466	15,776	6,665
Total Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									191,544	160,808	116,444
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									78,858	82,516	63,158
Mexico
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									101,768	43,122	46,385
Other Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									10,918	35,170	6,901
Total EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									85,474	68,197	67,451
Italy
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									43,196	32,926	27,249
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									17,438	14,221	21,284
Other EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									24,840	21,050	18,918
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 6,194	$ 9,517	$ 7,141