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Share Repurchase Programs (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
1 Months Ended 3 Months Ended 6 Months Ended
Nov. 30, 2013
Dec. 28, 2014
Dec. 28, 2014
Treasury Stock [Line Items]      
Stock repurchase program authorized amount $ 200.0us-gaap_StockRepurchaseProgramAuthorizedAmount    
Repurchase of common stock, Shares   0.2us-gaap_StockRepurchasedDuringPeriodShares 0.2us-gaap_StockRepurchasedDuringPeriodShares
Aggregate purchase price of shares   1.0us-gaap_StockRepurchasedDuringPeriodValue 1.0us-gaap_StockRepurchasedDuringPeriodValue
Average purchase price of shares   $ 5.54us-gaap_TreasuryStockAcquiredAverageCostPerShare $ 5.54us-gaap_TreasuryStockAcquiredAverageCostPerShare
Stock repurchase program remaining authorized amount   $ 49.0us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount $ 49.0us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount