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v3.20.4

Significant Accounting Policies - Schedule of Estimated Useful Lives of Property (Details) | 12 Months Ended
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Dec. 31, 2020
Building and improvements | Minimum |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property | 10 years
Building and improvements | Maximum |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property | 40 years
Leasehold improvements | Minimum |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property | 5 years
Leasehold improvements | Maximum |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property | 10 years
Water, power and sewer systems | Minimum |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property | 5 years
Water, power and sewer systems | Maximum |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property | 50 years
Asphalt plants, machinery and equipment | Minimum |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property | 2 years
Asphalt plants, machinery and equipment | Maximum |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property | 35 years
Other property improvements | Minimum |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property | 3 years
Other property improvements | Maximum |
Property, Plant and Equipment [Line Items] |
Estimated useful lives of property | 35 years

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

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Balance Type: |
Period Type: |

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- Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Data Type: | na
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- Details
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Data Type: | na
Balance Type: |
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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |