Summary of Purchase Price (Detail) (USD $)	3 Months Ended	1 Months Ended
	Sep. 30, 2013	Sep. 30, 2013 Oclaro Incorporated
Business Acquisition [Line Items]
Net cash paid at acquisition date	$ 90,601,000	$ 90,601,000
Purchase of business - holdback amount recorded in other accrued liabilities		2,000,000
Purchase of business - holdback amount recorded in other liabilities		6,000,000
Purchase price		$ 98,601,000