GEOGRAPHIC INFORMATION, PRODUCT GROUPS AND CUSTOMER CONCENTRATION INFORMATION - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 27, 2014	Dec. 28, 2013	Jun. 28, 2014
Coriant
Revenue, Major Customer [Line Items]
Percentage of revenues	20.00%	15.00%	23.00%	13.00%
Percentage of accounts receivable	28.00%		28.00%		19.00%
Huawei
Revenue, Major Customer [Line Items]
Percentage of revenues	14.00%	10.00%	13.00%	10.00%
Percentage of accounts receivable					13.00%
Alcatel-Lucent
Revenue, Major Customer [Line Items]
Percentage of revenues	13.00%		10.00%
Percentage of accounts receivable	10.00%		10.00%
Cisco Systems Inc
Revenue, Major Customer [Line Items]
Percentage of revenues		13.00%	10.00%	14.00%