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Investments (Details) (USD $)
Dec. 28, 2014
Jun. 29, 2014
Sep. 28, 2014
Mar. 30, 2014
Schedule of Equity Method Investments [Line Items]        
Equity Method Investments $ 27,967,000us-gaap_EquityMethodInvestments $ 27,137,000us-gaap_EquityMethodInvestments    
Independent Distributors [Member]        
Schedule of Equity Method Investments [Line Items]        
Equity Method Investments 10,200,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= bgg_IndependentDistributorsMember		     6,500,000us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= bgg_IndependentDistributorsMember
Equity Method Investment - Incremental Investment     $ 2,800,000bgg_EquityMethodInvestmentIncrementalInvestment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= bgg_IndependentDistributorsMember		  
Equity Method Investment, Ownership Percentage 11.90%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= bgg_IndependentDistributorsMember