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Revenue - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation Of Revenue [Line Items]
Percentage of recognized revenue from contract liability balances	71.00%	70.00%
Transferred over Time | Maximum
Disaggregation Of Revenue [Line Items]
Percentage of sales related to contracts with service	10.00%

X

- Definition

Percentage of revenue from contracts with service elements.

+ References

No definition available.

+ Details

Name:	bldr_PercentageOfRevenueFromContractsWithServiceElements
Namespace Prefix:	bldr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of revenue recognized from contract with customer liability.

+ References

No definition available.

+ Details

Name:	bldr_PercentageOfRevenueRecognizedFromContractWithCustomerLiability
Namespace Prefix:	bldr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

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

X

- Details

Name:	us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredOverTimeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: