Other Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended				3 Months Ended	1 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 12, 2013 Zurich Business	Jun. 29, 2013 Zurich Business	Sep. 29, 2012 Discontinued Operations Zurich Business	Jul. 23, 2012 Opnext	Jul. 23, 2012 Developed technology Opnext	Jul. 23, 2012 Contract Backlog Opnext	Jul. 23, 2012 Customer Relationships Opnext	Jul. 23, 2012 Trademarks and other Opnext
Goodwill And Other Intangible Assets [Line Items]
Carrying value of other intangible assets			$ 0	$ 0
Amortization of intangible assets	424,000	1,232,000			100,000
Date of Acquisition						Jul. 23, 2012
Other intangible assets acquired						16,400,000	8,700,000	200,000	4,900,000	2,700,000
Other intangible assets, estimated Weighted average useful life							6 years	1 year	11 years	6 years
Impairment loss of intangibles		$ 864,000