Finisar Acquisition - Unaudited Supplemental Pro Forma Financial Information (Detail) - Finisar Corporation - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Business Acquisition [Line Items]
Revenue	$ 627,041	$ 666,052	$ 1,901,528	$ 1,966,318
Net Earnings (Loss)	$ 5,253	$ (10,077)	$ 2,926	$ (113,152)