Summary of Purchase Price (Detail) (USD $)	12 Months Ended			0 Months Ended	1 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Sep. 12, 2013 Oclaro's Fiber Amplifier and Micro Optics Business	Nov. 30, 2013 Oclaro's Fiber Amplifier and Micro Optics Business	Sep. 30, 2013 Oclaro Incorporated	Jun. 30, 2014 Oclaro Incorporated
Business Acquisition [Line Items]
Net cash paid at acquisition date	$ 177,676,000	$ 126,193,000	$ 46,141,000	$ 5,000,000	$ 79,600,000	$ 90,601,000
Purchase of business - holdback amount recorded in other liabilities					4,000,000	6,000,000	2,000,000
Purchase price					88,600,000	99,076,000
Additional cash paid for working capital adjustment						$ 2,475,000