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Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 363,792		$ 347,584
Less accumulated depreciation	(151,189)		(143,268)
Total property and equipment, net	212,603		204,316
Depreciation	8,199	$ 5,439
Construction and transportation equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	332,289		316,381
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	24,298		24,042
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,891		3,891
Office equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 3,314		$ 3,270

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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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.

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