XML 60 R49.htm IDEA: XBRL DOCUMENT v3.23.1

Long-Term Debt - Fair Value - Additional Information (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Sep. 30, 2022	Jan. 21, 2022	Jul. 31, 2021
4.25% 2032 notes
Debt Instrument [Line Items]
Private offered aggregate principal amount rate	4.25%		4.25%	4.25%
4.25% 2032 notes | Level 2
Debt Instrument [Line Items]
Fair value of long term debt	$ 1,137.5
6.375% 2032 notes
Debt Instrument [Line Items]
Private offered aggregate principal amount rate	6.375%	6.375%
6.375% 2032 notes | Level 2
Debt Instrument [Line Items]
Fair value of long term debt	$ 700.0
2030 Notes
Debt Instrument [Line Items]
Private offered aggregate principal amount rate	5.00%
2030 Notes | Level 2
Debt Instrument [Line Items]
Fair value of long term debt	$ 511.5
2032 Notes
Debt Instrument [Line Items]
Private offered aggregate principal amount rate	4.25%		4.25%	4.25%

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bldr_FourPointTwoFivePercentageSeniorNotesDueTwoThousandThirtyTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bldr_SixPointThreeSevenFivePercentageSeniorNotesDueTwoThousandThirtyTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bldr_SeniorUnsecuredNotesDueTwoThousandThirtyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=bldr_SeniorUnsecuredNotesDueTwoThousandAndThirtyTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: