Guarantor Obligation, Settlement, Other Income (Expense)

No definition available.

Name:	bzh_GuarantorObligationSettlementOtherIncomeExpense
Namespace Prefix:	bzh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Guarantor obligation, Liability Settlement Payment

+ References

No definition available.

+ Details

Name:	bzh_GuarantorObligationSettlementPayment
Namespace Prefix:	bzh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Increase (Decrease) in Future Land Purchase Right

+ References

No definition available.

+ Details

Name:	bzh_IncreaseDecreaseInFutureLandPurchaseRight
Namespace Prefix:	bzh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Pre Owned Homes, Owned

+ References

No definition available.

+ Details

Name:	bzh_PreOwnedHomesOwned
Namespace Prefix:	bzh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Pre Owned Homes, Owned And Leased

+ References

No definition available.

+ Details

Name:	bzh_PreOwnedHomesOwnedAndLeased
Namespace Prefix:	bzh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Settlement of unconsolidated JV debt obligation

+ References

No definition available.

+ Details

Name:	bzh_SettlementOfUnconsolidatedJvDebtObligation
Namespace Prefix:	bzh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of vesting of share-based compensation awards.

+ References

No definition available.

+ Details

Name:	bzh_SharebasedCompensationArranagementbySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix:	bzh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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 Statement of Financial Accounting Standard (FAS)

-Number 159

-Paragraph 18

-Subparagraph f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: 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

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 18

-Paragraph 20

-Subparagraph a (1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ 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 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33749-111570

+ Details

Name:	us-gaap_EquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 45

-Paragraph 13

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 4

-Subparagraph (b)(1)

-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

+ Details

Name:	us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

+ Details

Name:	us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Investments in Unconsolidated Entities Narrative (Details) (USD $)	3 Months Ended	9 Months Ended			3 Months Ended			9 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2012	Sep. 30, 2012	Jun. 30, 2013 South Edge	Jun. 30, 2013 Inspirada	May 03, 2012 Inspirada	Jun. 30, 2013 the REIT	May 03, 2012 the REIT home	Sep. 30, 2012 Other Liabilities [Member]	Jun. 30, 2013 Vesting Period One [Member] Restricted Stock [Member]	Jun. 30, 2013 Vesting Period Two [Member] Restricted Stock [Member]	Jun. 30, 2013 Vesting PeriodThree [Member] Restricted Stock [Member]
Schedule of Equity Method Investments [Line Items]
Beazer homes' ownership interest in guarantor subsidiaries (less than 10% in Inspirada Builders LLC)	100.00%	100.00%					10.00%	15.14%	23.50%
Share-based Compensation Arranagement by Share-based Payment Award, Award Vesting Rights, Percentage											25.00%	25.00%	50.00%
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions								18.00%
Settlement of unconsolidated entity debt obligation		$ 500,000	$ 15,862,000		$ 15,900,000
Decrease in future land purchase rights		0	(11,651,000)			11,700,000
Equity Method Investments									300,000
Number of pre-owned homes owned									190
Number of Pre-owned homes owned and leased									187
Repayment guarantee included in Other Liabilities	0	0		696,000						700,000
Payment to settle repayment guarantee obligation	500,000
Other income recorded on settlement of guarantee obligation	$ 200,000