XML 18 R70.htm IDEA: XBRL DOCUMENT v2.4.1.9
Employee Retirement Savings Plan - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Mar. 29, 2015
Mar. 30, 2014
Mar. 31, 2013
Defined Contribution Plan Disclosure [Line Items]      
Employees contribution percentage 50.00%us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent    
Company's matching and discretionary 401(k) contributions $ 1.6us-gaap_DefinedContributionPlanCostRecognized $ 1.8us-gaap_DefinedContributionPlanCostRecognized $ 1.2us-gaap_DefinedContributionPlanCostRecognized
Maximum [Member]      
Defined Contribution Plan Disclosure [Line Items]      
Percentage of matching contributions of participant's compensation 2.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ us-gaap_RangeAxis
= us-gaap_MaximumMember