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Note 12 - Property and Equipment, Net | 9 Months Ended
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Sep. 30, 2021
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | 12. Property and Equipment, net Balances of major classes of assets and total accumulated depreciation and depletion are included in property and equipment, net in the condensed consolidated balance sheets and were as follows:
(in thousands) |  | September 30, 2021 |  |  | December 31, 2020 |  |  | September 30, 2020 |
Equipment and vehicles |  | $ | 997,560 |  |  | $ | 950,416 |  |  | $ | 959,828 |
Quarry property |  |  | 188,838 |  |  |  | 206,073 |  |  |  | 199,677 |
Land and land improvements |  |  | 126,130 |  |  |  | 135,639 |  |  |  | 135,102 |
Buildings and leasehold improvements |  |  | 123,207 |  |  |  | 124,578 |  |  |  | 122,119 |
Office furniture and equipment |  |  | 78,059 |  |  |  | 73,512 |  |  |  | 72,675 |
Property and equipment |  |  | 1,513,794 |  |  |  | 1,490,218 |  |  |  | 1,489,401 |
Less: accumulated depreciation and depletion |  |  | 1,003,136 |  |  |  | 963,202 |  |  |  | 953,145 |
Property and equipment, net |  | $ | 510,658 |  |  | $ | 527,016 |  |  | $ | 536,256 |
On June 30, 2021, we completed a sale-leaseback transaction associated with two properties in California. Sale of these properties resulted in a reduction in net property and equipment of $11.1 million and a $2.4 million addition to right of use assets and lease liabilities on the condensed consolidated balance sheets, as well as a $29.7 million gain on sales of property and equipment on the condensed consolidated statements of operations.

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