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Net Earnings per Common Share - Reconciliation of Numerator and Denominator of Basic and Diluted Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Apr. 30, 2015 | Apr. 30, 2014 | Apr. 30, 2015 | Apr. 30, 2014
Earnings Per Share [Line Items] |  |  |  |
Earnings from continuing operations | $ 17,213 us-gaap_IncomeLossFromContinuingOperations | $ 20,184 us-gaap_IncomeLossFromContinuingOperations | $ 44,296 us-gaap_IncomeLossFromContinuingOperations | $ 48,835 us-gaap_IncomeLossFromContinuingOperations
Denominator for basic earnings (loss) from continuing operations per share for both Class A and Class B | 51,301 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 51,933 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 51,275 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 52,071 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Plus: Effect of dilutive stock options | 149 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 67 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 95 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 233 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Denominator for diluted net income per share for both Class A and Class B | 51,450 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 52,000 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 51,370 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 52,304 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Class A nonvoting common stock |  |  |  |
Earnings Per Share [Line Items] |  |  |  |
Earnings from continuing operations | 17,213 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 20,168 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 44,296 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 48,759 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Earnings from continuing operations per basic share | $ 0.34 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.39 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.86 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.94 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Earnings from continuing operations per diluted share | $ 0.33 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.39 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.86 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.93 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Earnings (loss) from discontinued operations per basic share | $ 0.00 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.07 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ (0.03)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.30 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Earnings (loss) from discontinued operations per diluted share | $ 0.00 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.07 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ (0.03)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.30 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Net earnings per share, basic | $ 0.34 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.46 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.83 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 1.24 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Net earnings per share, diluted | $ 0.33 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.46 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.83 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 1.23 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Class B voting common stock |  |  |  |
Earnings Per Share [Line Items] |  |  |  |
Earnings from continuing operations | 17,213 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 20,168 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 43,501 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 47,940 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Earnings from continuing operations per basic share | $ 0.34 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.39 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.85 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.92 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Earnings from continuing operations per diluted share | $ 0.33 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.39 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.85 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.92 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Earnings (loss) from discontinued operations per basic share | $ 0.00 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.07 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ (0.04)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.30 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Earnings (loss) from discontinued operations per diluted share | $ 0.00 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.07 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ (0.04)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.29 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Net earnings per share, basic | $ 0.34 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.46 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.81 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 1.22 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Net earnings per share, diluted | $ 0.33 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.46 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.81 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 1.21 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Restricted Stock Dividends [Member] |  |  |  |
Earnings Per Share [Line Items] |  |  |  |
Less: Dividends | 0 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = us-gaap_RestrictedStockMember | 16 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = us-gaap_RestrictedStockMember | 0 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = us-gaap_RestrictedStockMember | 76 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = us-gaap_RestrictedStockMember
Preferential Dividends on Class A Nonvoting Common Stock [Member] |  |  |  |
Earnings Per Share [Line Items] |  |  |  |
Less: Dividends | 0 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = brc_PreferentialDividendsOnClassNonvotingCommonStockMember | 0 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = brc_PreferentialDividendsOnClassNonvotingCommonStockMember | 794 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = brc_PreferentialDividendsOnClassNonvotingCommonStockMember | 813 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = brc_PreferentialDividendsOnClassNonvotingCommonStockMember
Preferential Dividends on Dilutive Shares [Member] |  |  |  |
Earnings Per Share [Line Items] |  |  |  |
Less: Dividends | $ 0 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = brc_PreferentialDividendsOnDilutiveSharesMember | $ 0 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = brc_PreferentialDividendsOnDilutiveSharesMember | $ 1 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = brc_PreferentialDividendsOnDilutiveSharesMember | $ 6 us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = brc_PreferentialDividendsOnDilutiveSharesMember

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