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v3.22.2

Revenue - Additional Information (Detail) | 6 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021
Disaggregation Of Revenue [Line Items] |  |
Percentage of recognized revenue from contract liability balance | 87.00% | 92.00%
Transferred over Time | Maximum |  |
Disaggregation Of Revenue [Line Items] |  |
Percentage of sales related to contracts with service | 10.00% |

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- Definition Percentage of revenue from contracts with service elements. + References No definition available. + Details
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Namespace Prefix: | bldr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- 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

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- 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

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

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