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Debt Instrument, Redemption Price, Percentage of Principal Amount Outstanding After Redemption

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Line of Credit Facility, Number of Lenders

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Ownership Interest In Guarantor Subsidiaries

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Senior Unsecured Term Loan [Abstract]

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the required periodic payments including both interest and principal payments.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Percentage of principal amount of debt redeemed.

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Amount, after accumulated amortization, of debt discount.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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Weighted average interest rate of debt outstanding.

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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.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Reflects the difference between the fair value of payments made to legally extinguish a debt and its carrying value at that time. This item excludes the write-off of amounts previously capitalized as debt issuance costs.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The carrying amount, as of the date of the latest financial statement presented, of real estate owned but transferred to serve as collateral for the payment of the related debt obligation, primarily a secured borrowing or repurchase agreement, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Borrowings - Narrative (Details)		1 Months Ended			3 Months Ended								9 Months Ended	12 Months Ended
Borrowings - Narrative (Details)	Sep. 09, 2019 USD ($)	Sep. 30, 2019 USD ($) lender	Sep. 30, 2018 USD ($)	Oct. 31, 2017 USD ($)	Sep. 30, 2019 USD ($) lender	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 30, 2019 USD ($)	Sep. 30, 2019 USD ($) lender	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 01, 2019 USD ($)	Aug. 31, 2019 USD ($)	May 31, 2018 USD ($)	Jan. 15, 2010 USD ($)	Jun. 15, 2006
Senior Notes [Abstract]
Beazer homes' ownership interest in guarantor subsidiaries		100.00%			100.00%									100.00%
Loss on extinguishment of debt, net					$ 25,494,000	$ (358,000)	$ (216,000)	$ 0	$ 1,935,000	$ 0	$ 0	$ 25,904,000		$ 24,920,000	$ 27,839,000	$ 12,630,000
Non-cash (gain) loss on extinguishment of debt												3,200,000	$ 300,000
Loss on extinguishment of debt, before write off of debt issuance cost													600,000
Secured Debt [Abstract]
Total debt (net of premium and debt issuance costs)		$ 1,178,309,000	$ 1,231,254,000		1,178,309,000				1,231,254,000					1,178,309,000	1,231,254,000
Senior Notes
Senior Notes [Abstract]
Redemption of senior notes												34,500,000
Loss on extinguishment of debt, net														24,900,000
Non-cash (gain) loss on extinguishment of debt														2,400,000
Secured Debt [Abstract]
Total debt (net of premium and debt issuance costs)		$ 1,111,085,000	1,163,138,000		$ 1,111,085,000				1,163,138,000					$ 1,111,085,000	1,163,138,000
Senior Notes \| Senior Unsecured Term Loans September 2022
Senior Unsecured Term Loan [Abstract]
Periodic payment	$ 50,000,000
Senior Notes [Abstract]
Debt instrument stated interest rate (percent)	4.875%
Junior Subordinated Notes [Abstract]
Aggregate principal amount of debt	$ 150,000,000
Senior Notes \| 7 1/4% Senior Notes Maturing October 2029
Senior Notes [Abstract]
Debt instrument stated interest rate (percent)		7.25%			7.25%									7.25%
Debt instrument, redemption price (percent)														107.25%
Percentage of principal amount redeemed														35.00%
Percentage of principal amount outstanding after redemption														65.00%
Junior Subordinated Notes [Abstract]
Aggregate principal amount of debt		$ 350,000,000.0			$ 350,000,000.0									$ 350,000,000.0
Secured Debt [Abstract]
Total debt (net of premium and debt issuance costs)		350,000,000	0		$ 350,000,000				0					$ 350,000,000	0
Senior Notes \| 8.75% Unsecured Senior Notes March 2022
Senior Notes [Abstract]
Redemption of senior notes		500,000,000
Loss on extinguishment of debt, net		25,200,000
Non-cash (gain) loss on extinguishment of debt		$ 1,900,000
Senior Notes \| 5.75% Unsecured Senior Notes due 2019
Senior Notes [Abstract]
Loss on extinguishment of debt, net												(225,000,000)
Senior Notes \| 7.25% Unsecured Senior Notes due 2023
Senior Notes [Abstract]
Loss on extinguishment of debt, net												$ (175,000,000)
Senior Notes \| 5 3/4% Senior Notes Maturing June 2019
Senior Notes [Abstract]
Redemption of senior notes			98,200,000
Loss on extinguishment of debt, net			1,900,000
Non-cash (gain) loss on extinguishment of debt			100,000
Senior Notes \| 5.875% Unsecured Senior Notes
Junior Subordinated Notes [Abstract]
Aggregate principal amount of debt				$ 400,000,000.0
Senior Notes \| 6 3/4% Senior Notes Maturing March of 2025
Senior Notes [Abstract]
Debt instrument stated interest rate (percent)		6.75%			6.75%									6.75%
Debt instrument, redemption price (percent)														106.75%
Percentage of principal amount redeemed														35.00%
Percentage of principal amount outstanding after redemption														65.00%
Secured Debt [Abstract]
Total debt (net of premium and debt issuance costs)		$ 229,555,000	250,000,000		$ 229,555,000				250,000,000					$ 229,555,000	250,000,000
Senior Notes \| 7 1/4% Senior Notes Maturing February 2023
Senior Notes [Abstract]
Redemption of senior notes					$ 23,700,000
Debt instrument stated interest rate (percent)		7.25%			7.25%									7.25%
Secured Debt [Abstract]
Total debt (net of premium and debt issuance costs)		$ 0	24,834,000		$ 0				24,834,000					$ 0	24,834,000
Senior Notes \| 7.25% Unsecured Senior Notes due Maturing February 2023
Senior Notes [Abstract]
Redemption of senior notes													1,200,000
Loss on extinguishment of debt, net					300,000
Non-cash (gain) loss on extinguishment of debt					200,000
Senior Notes \| 6.75% Unsecured Senior Notes due Maturing March 2025
Senior Notes [Abstract]
Redemption of senior notes													$ 20,400,000
Senior Notes \| 5.85% Unsecured Senior Notes due Maturing October 2027
Senior Notes [Abstract]
Redemption of senior notes					6,000,000
Senior Notes \| June 2019 and February 2023 Notes
Senior Notes [Abstract]
Loss on extinguishment of debt, net															27,800,000
Junior Subordinated Notes
Senior Notes [Abstract]
Debt instrument stated interest rate (percent)																					7.987%
Junior Subordinated Notes [Abstract]
Effective period of debt instrument interest rate														10 years
Aggregate principal amount of debt																				$ 75,000,000
Unamortized discount		34,703,000	36,770,000		34,703,000				36,770,000					$ 34,703,000	36,770,000
Secured Debt [Abstract]
Total debt (net of premium and debt issuance costs)		$ 66,070,000	64,003,000		$ 66,070,000				64,003,000					$ 66,070,000	64,003,000
Weighted average fixed interest rate of debt (percent)		4.72%			4.72%									4.72%
Other Secured Notes Payable
Secured Debt [Abstract]
Total debt (net of premium and debt issuance costs)		$ 1,154,000	4,113,000		$ 1,154,000				4,113,000					$ 1,154,000	4,113,000
Weighted average fixed interest rate of debt (percent)		6.00%			6.00%									6.00%
Secured Revolving Credit Facility
Line of Credit Facility [Abstract]
Maximum borrowing capacity			200,000,000						200,000,000						200,000,000		$ 250,000,000	$ 210,000,000
Inventory assets pledged as collateral		$ 936,000,000			$ 936,000,000									$ 936,000,000				$ 800,000,000
Aggregate collateral ratio		4			4									4
Line of credit facility, number of lenders \| lender		4			4									4
Line of credit facility, remaining borrowing capacity		$ 250,000,000			$ 250,000,000									$ 250,000,000
Letter of Credit
Line of Credit Facility [Abstract]
Letters of credit secured using cash collateral		14,100,000	$ 10,400,000		14,100,000				$ 10,400,000					14,100,000	$ 10,400,000
Standby Letters of Credit \| Issuance Capacity
Line of Credit Facility [Abstract]
Maximum borrowing capacity																			$ 50,000,000.0
Standby Letters of Credit \| Standby Letter for Credit Facility
Line of Credit Facility [Abstract]
Letters of credit secured using cash collateral		$ 34,200,000			$ 34,200,000									$ 34,200,000
Standby Letters of Credit \| Backstop Standby Letters of Credit
Line of Credit Facility [Abstract]
Maximum borrowing capacity																			$ 40,000,000.0
Debt Instrument, Redemption, Period One \| Senior Notes \| 7 1/4% Senior Notes Maturing October 2029
Senior Notes [Abstract]
Debt instrument, redemption price (percent)														100.00%
Debt Instrument, Redemption, Period One \| Senior Notes \| 5.875% Unsecured Senior Notes
Senior Notes [Abstract]
Debt instrument, redemption price (percent)				100.00%
Debt Instrument, Redemption, Period One \| Senior Notes \| 6 3/4% Senior Notes Maturing March of 2025
Senior Notes [Abstract]
Debt instrument, redemption price (percent)														100.00%
Debt Instrument, Redemption, Period Two \| Senior Notes \| 7 1/4% Senior Notes Maturing October 2029
Senior Notes [Abstract]
Debt instrument, redemption price (percent)														103.325%
Debt Instrument, Redemption, Period Two \| Senior Notes \| 6 3/4% Senior Notes Maturing March of 2025
Senior Notes [Abstract]
Debt instrument, redemption price (percent)														105.063%