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GEOGRAPHIC INFORMATION, PRODUCT GROUPS AND CUSTOMER CONCENTRATION INFORMATION - Additional Information (Detail)
3 Months Ended 9 Months Ended
Mar. 28, 2015
Mar. 29, 2014
Mar. 28, 2015
Mar. 29, 2014
Jun. 28, 2014
Customer A          
Revenue, Major Customer [Line Items]          
Percentage of revenues 19.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerAMember
21.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerAMember
22.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerAMember
18.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerAMember
 
Percentage of accounts receivable 28.00%oclr_PercentageOfAccountsReceivable
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerAMember
  28.00%oclr_PercentageOfAccountsReceivable
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerAMember
  19.00%oclr_PercentageOfAccountsReceivable
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerAMember
Customer B          
Revenue, Major Customer [Line Items]          
Percentage of revenues 16.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerBMember
12.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerBMember
14.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerBMember
13.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerBMember
 
Percentage of accounts receivable 10.00%oclr_PercentageOfAccountsReceivable
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerBMember
  10.00%oclr_PercentageOfAccountsReceivable
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerBMember
  13.00%oclr_PercentageOfAccountsReceivable
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerBMember
Customer C          
Revenue, Major Customer [Line Items]          
Percentage of revenues 11.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerCMember
11.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerCMember
10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerCMember
10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerCMember
 
Customer D          
Revenue, Major Customer [Line Items]          
Percentage of revenues 10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_StatementBusinessSegmentsAxis
= oclr_CustomerDMember