Property, Plant and Equipment [Table Text Block] |
(in thousands) | | June 30, 2022 | | | December 31, 2021 | | | June 30, 2021 | |
Equipment and vehicles | | $ | 908,941 | | | $ | 870,672 | | | $ | 849,011 | |
Quarry property | | | 206,067 | | | | 191,982 | | | | 195,284 | |
Land and land improvements | | | 109,420 | | | | 108,518 | | | | 117,394 | |
Buildings and leasehold improvements | | | 97,222 | | | | 96,180 | | | | 98,591 | |
Office furniture and equipment | | | 77,982 | | | | 75,043 | | | | 73,403 | |
Property and equipment | | | 1,399,632 | | | | 1,342,395 | | | | 1,333,683 | |
Less: accumulated depreciation and depletion | | | 935,039 | | | | 908,891 | | | | 900,787 | |
Property and equipment, net | | $ | 464,593 | | | $ | 433,504 | | | $ | 432,896 | |
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