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Net Income 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 | 6 Months Ended
--- | --- | ---
Jan. 31, 2015 | Jan. 31, 2014 | Jan. 31, 2015 | Jan. 31, 2014
Earnings Per Share [Line Items] |  |  |  |
Earnings from continuing operations | $ 11,584 us-gaap_IncomeLossFromContinuingOperations | $ 10,517 us-gaap_IncomeLossFromContinuingOperations | $ 27,083 us-gaap_IncomeLossFromContinuingOperations | $ 28,652 us-gaap_IncomeLossFromContinuingOperations
Denominator for basic earnings (loss) from continuing operations per share for both Class A and Class B | 51,272 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 52,208 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 51,262 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 52,140 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Plus: Effect of dilutive stock options | 76 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 286 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 68 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 317 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Denominator for diluted net income per share for both Class A and Class B | 51,348 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 52,494 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 51,330 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 52,457 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Class A nonvoting common stock |  |  |  |
Earnings Per Share [Line Items] |  |  |  |
Earnings from continuing operations | 11,584 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 10,501 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 27,083 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 28,591 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Earnings from continuing operations per basic share | $ 0.23 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.20 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.53 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.55 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Earnings from continuing operations per diluted share | $ 0.23 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.20 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.53 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.55 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 | $ 0.11 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ (0.04)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.22 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 | $ 0.11 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ (0.04)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.22 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Net earnings per share, basic | $ 0.23 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.31 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.49 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.77 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Net earnings per share, diluted | $ 0.23 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.31 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.49 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 0.77 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Class B voting common stock |  |  |  |
Earnings Per Share [Line Items] |  |  |  |
Earnings from continuing operations | 11,584 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 10,501 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 26,288 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 27,772 us-gaap_IncomeLossFromContinuingOperations / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Earnings from continuing operations per basic share | $ 0.23 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.20 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.51 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.53 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Earnings from continuing operations per diluted share | $ 0.23 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.20 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.51 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.53 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 | $ 0.11 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ (0.03)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.23 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 | $ 0.11 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ (0.04)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.22 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Net earnings per share, basic | $ 0.23 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.31 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.48 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.76 us-gaap_EarningsPerShareBasic / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember
Net earnings per share, diluted | $ 0.23 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.31 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.47 us-gaap_EarningsPerShareDiluted / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | $ 0.75 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 | 61 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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