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Borrowings - Narrative (Details) (USD $) Share data in Thousands, unless otherwise specified | 1 Months Ended | 3 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 30, 2014 | Jan. 31, 2014 | Dec. 31, 2014 | Sep. 30, 2014 | Nov. 10, 2014 lender | Aug. 31, 2013 | Apr. 30, 2014 | Sep. 30, 2013 | Feb. 28, 2013 | Jul. 17, 2012 TEUs | Jan. 15, 2010
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Beazer homes' ownership interest in guarantor subsidiaries (less than 10% in Inspirada Builders LLC) |  |  | 100.00%us-gaap_EquityMethodInvestmentOwnershipPercentage |  |  |  |  |  |  |  |
Minimum consolidated tangible net worth |  |  | $ 85,000,000 bzh_ConversionofDebtTriggeringEventValueofConsolidatedTangibleNetWorth |  |  |  |  |  |  |  |
Consolidated tangible net worth |  |  | 235,600,000 bzh_ConsolidatedTangibleNetWorth |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Unamortized accretion |  |  | 4,209,000 us-gaap_DebtInstrumentUnamortizedDiscount | 4,399,000 us-gaap_DebtInstrumentUnamortizedDiscount |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  | 1,536,591,000 us-gaap_LongTermDebt | 1,535,433,000 us-gaap_LongTermDebt |  |  |  |  |  |  |
Senior Notes |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Percentage of debt, at par, required to be offered for purchase |  |  | 10.00%bzh_ConversionofDebtTriggeringEventPercentageofDebtInstrumentatParRequiredtobeOfferedforPurchase / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Amount of original debt that could be repurchased |  |  | 27,500,000 bzh_DebtInstrumentOriginalAmountOfDebtThatCouldBeRepurchased / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Unamortized accretion |  |  | 4,209,000 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 4,399,000 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  | 1,433,735,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 1,435,183,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |
Senior Notes | 5 3/4% Senior Notes Maturing June 2019 |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt |  |  |  |  |  |  | 325,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = bzh_A534SeniorNotesMaturingJune2019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |
Stated interest rate on debt instrument (percent) |  |  | 5.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A534SeniorNotesMaturingJune2019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  | 5.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A534SeniorNotesMaturingJune2019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed | 100.00%us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed / us-gaap_DebtInstrumentAxis = bzh_A534SeniorNotesMaturingJune2019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Repurchase Percentage |  |  | 35.00%bzh_DebtInstrumentRepurchasePercentage / us-gaap_DebtInstrumentAxis = bzh_A534SeniorNotesMaturingJune2019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Senior Notes | 7 1/2% Senior Notes Maturing September 2021 |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt |  |  |  |  |  |  |  | 200,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |
Stated interest rate on debt instrument (percent) |  |  | 7.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 7.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  | 7.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  | 100.00%us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |  |
Debt Issuance Discount |  |  |  |  |  |  |  | 98.541%bzh_DebtIssuanceDiscount / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  | 100.00%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Debt Instrument, Repurchase Percentage |  |  | 35.00%bzh_DebtInstrumentRepurchasePercentage / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Senior Notes | 7 1/4% Senior Notes Maturing February 2023 |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt |  |  |  |  |  |  |  |  | 200,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |
Stated interest rate on debt instrument (percent) |  |  | 7.25%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 7.25%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  | 7.25%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  | 100.00%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Debt Instrument, Repurchase Percentage |  |  | 35.00%bzh_DebtInstrumentRepurchasePercentage / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Senior Notes | 6.625% Senior Secured Notes |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt instrument (percent) |  |  | 6.625%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_SixAndFiveEighthsPercentSeniorSecuredNotesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 6.625%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_SixAndFiveEighthsPercentSeniorSecuredNotesMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |
Senior Notes | 9 1/8% Senior Notes Maturing May 2019 |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt instrument (percent) |  |  | 9.125%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A918SeniorNotesMaturingMay2019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 9.125%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A918SeniorNotesMaturingMay2019Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |
Senior Notes | 9 1/8% Senior Notes Maturing June 2018 |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt instrument (percent) |  |  | 9.125%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A918SeniorNotesMaturingJune2018Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 9.125%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A918SeniorNotesMaturingJune2018Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |
Call price and make-whole premiums provided for by 2018 Notes |  |  | 17,200,000 us-gaap_EarlyRepaymentOfSeniorDebt / us-gaap_DebtInstrumentAxis = bzh_A918SeniorNotesMaturingJune2018Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  | (19,800,000)us-gaap_GainsLossesOnExtinguishmentOfDebt / us-gaap_DebtInstrumentAxis = bzh_A918SeniorNotesMaturingJune2018Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Senior Notes | 8 1/8% Senior Notes Maturing June 2016 |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt instrument (percent) |  |  | 8.125%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A818SeniorNotesMaturingJune2016Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 8.125%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_A818SeniorNotesMaturingJune2016Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |
Senior Notes | Tangible Equity Units |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt instrument (percent) |  |  |  |  |  |  |  |  |  | 7.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = bzh_TangibleEquityUnitsMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Tangible Equity Units TEUs Converted |  |  |  | 890 bzh_TangibleEquityUnitsTEUsConverted / us-gaap_DebtInstrumentAxis = bzh_TangibleEquityUnitsMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |
Stock Exchange, Debt Related to Tangible Equity Unit |  |  |  | 2,400,000 bzh_StockExchangeDebtRelatedToTangibleEquityUnit / us-gaap_DebtInstrumentAxis = bzh_TangibleEquityUnitsMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |
Tangible Capital [Abstract] |  |  |  |  |  |  |  |  |  |  |
Tangible Equity Units (TEUs) issued during period, (units) |  |  |  |  |  |  |  |  |  | 4,600,000 bzh_TangibleEquityUnitsTeusIssuedDuringPeriodUnits / us-gaap_DebtInstrumentAxis = bzh_TangibleEquityUnitsMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Junior Subordinated Notes |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt |  |  | 103,100,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_JuniorSubordinatedDebtMember |  |  |  |  |  |  |  | 75,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_JuniorSubordinatedDebtMember
Stated interest rate on debt instrument (percent) |  |  | 7.987%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = us-gaap_JuniorSubordinatedDebtMember |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Effective period of debt instrument interest rate |  |  | 10 years |  |  |  |  |  |  |  |
Unamortized accretion |  |  | 44,500,000 us-gaap_DebtInstrumentUnamortizedDiscount / us-gaap_LongtermDebtTypeAxis = us-gaap_JuniorSubordinatedDebtMember |  |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  | 56,253,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_JuniorSubordinatedDebtMember | 55,737,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_JuniorSubordinatedDebtMember |  |  |  |  |  |  |
Cash Secured Loan |  |  |  |  |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |
Three-month LIBOR |  |  | LIBOR |  |  |  |  |  |  |  |
Spread on variable interest rate (percent) |  |  | 0.40%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_SecuredDebtMember |  |  |  |  |  |  |  |
Long-term debt |  |  | 22,368,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_SecuredDebtMember | 22,368,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_SecuredDebtMember |  |  |  |  |  |  |
Other Secured Notes Payable |  |  |  |  |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  | 24,235,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember | 22,145,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember |  |  |  |  |  |  |
Weighted average fixed interest rate of debt (percent) |  |  | 4.67%us-gaap_DebtWeightedAverageInterestRate / us-gaap_LongtermDebtTypeAxis = us-gaap_NotesPayableOtherPayablesMember |  |  |  |  |  |  |  |
Secured Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |
Credit facility borrowing capacity |  |  | 150,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |  |  |  |  |  |
Line of Credit, Current |  |  | 20,000,000 us-gaap_LinesOfCreditCurrent / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |  |  |  |  |  |
Amount of available borrowings under the Secured Revolving Credit Facility |  |  | 150,000,000 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |  |  |  |  |  |
Inventory assets pledged as collateral |  |  | 1,000,000,000 us-gaap_PledgedAssetsNotSeparatelyReportedRealEstate / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |  |  |  |  |  |
Outstanding borrowings under the Secured Revolving Credit Facility |  |  | 0 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember | 0 us-gaap_LineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Number of Lenders |  |  | 4 bzh_LineofCreditFacilityNumberofLenders / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  | 3 bzh_LineofCreditFacilityNumberofLenders / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |  |  |  |
Line of Credit Facility, Expiration Period |  |  | 1 year |  |  |  |  |  |  |  |
Long-term Line of Credit, Noncurrent |  |  | 130,000,000 us-gaap_LongTermLineOfCredit / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |  |  |  |  |  |
Letter of Credit |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Abstract] |  |  |  |  |  |  |  |  |  |  |
Credit facility borrowing capacity |  |  | 150,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_LetterOfCreditMember |  |  |  |  |  |  |  |
Letters of credit secured using cash collateral |  |  | $ 38,600,000 us-gaap_LettersOfCreditOutstandingAmount / us-gaap_CreditFacilityAxis = us-gaap_LetterOfCreditMember | $ 39,100,000 us-gaap_LettersOfCreditOutstandingAmount / us-gaap_CreditFacilityAxis = us-gaap_LetterOfCreditMember |  |  |  |  |  |  |
Minimum | Senior Notes | 7 1/2% Senior Notes Maturing September 2021 |  |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  | 100.00%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |  |  |  |  |
Minimum | Senior Notes | 7 1/4% Senior Notes Maturing February 2023 |  |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  | 100.00%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |  |  |  |  |
Maximum | Senior Notes | 7 1/2% Senior Notes Maturing September 2021 |  |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  | 105.625%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |  |  |  |
Maximum | Senior Notes | 7 1/4% Senior Notes Maturing February 2023 |  |  |  |  |  |  |  |  |  |  |
Senior Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  |  |  |  |  | 100.00%us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  | 103.625%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |  |  |  |  |
Optional Redemption Under Indenture | Senior Notes | 5 3/4% Senior Notes Maturing June 2019 |  |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  | 105.75%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A534SeniorNotesMaturingJune2019Member / bzh_DebtInstrumentCovenantComplianceStatusAxis = bzh_OptionalRedemptionUnderIndentureMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Debt Instrument, Repurchase Percentage |  |  | 65.00%bzh_DebtInstrumentRepurchasePercentage / us-gaap_DebtInstrumentAxis = bzh_A534SeniorNotesMaturingJune2019Member / bzh_DebtInstrumentCovenantComplianceStatusAxis = bzh_OptionalRedemptionUnderIndentureMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Optional Redemption Under Indenture | Senior Notes | 7 1/2% Senior Notes Maturing September 2021 |  |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  | 107.50%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / bzh_DebtInstrumentCovenantComplianceStatusAxis = bzh_OptionalRedemptionUnderIndentureMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Debt Instrument, Repurchase Percentage |  |  | 65.00%bzh_DebtInstrumentRepurchasePercentage / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / bzh_DebtInstrumentCovenantComplianceStatusAxis = bzh_OptionalRedemptionUnderIndentureMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Optional Redemption Under Indenture | Senior Notes | 7 1/4% Senior Notes Maturing February 2023 |  |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  | 107.25%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / bzh_DebtInstrumentCovenantComplianceStatusAxis = bzh_OptionalRedemptionUnderIndentureMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
Debt Instrument, Repurchase Percentage |  |  | 65.00%bzh_DebtInstrumentRepurchasePercentage / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / bzh_DebtInstrumentCovenantComplianceStatusAxis = bzh_OptionalRedemptionUnderIndentureMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
In Compliance | Senior Notes | 5 3/4% Senior Notes Maturing June 2019 |  |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  | 100.00%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A534SeniorNotesMaturingJune2019Member / bzh_DebtInstrumentCovenantComplianceStatusAxis = bzh_InComplianceMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |
In Compliance | Senior Notes | 7 1/2% Senior Notes Maturing September 2021 |  |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  |  | 101.00%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A712SeniorNotesMaturingSeptember2021Member / bzh_DebtInstrumentCovenantComplianceStatusAxis = bzh_InComplianceMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |
In Compliance | Senior Notes | 7 1/4% Senior Notes Maturing February 2023 |  |  |  |  |  |  |  |  |  |  |
Junior Subordinated Notes [Abstract] |  |  |  |  |  |  |  |  |  |  |
Debt instrument redemption price (percent) |  |  | 101.00%bzh_DebtInstrumentRedemptionOptionPercentOfPar / us-gaap_DebtInstrumentAxis = bzh_A714SeniorNotesMaturingFebruary2023Member / bzh_DebtInstrumentCovenantComplianceStatusAxis = bzh_InComplianceMember / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |  |  |  |  |  |  |

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Percentage of principal amount of debt redeemed. + References No definition available. + Details
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- Definition The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Definition The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Line-of-Credit Arrangement -URI http://asc.fasb.org/extlink&oid=6517033 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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