XML 38 R20.htm IDEA: XBRL DOCUMENT v3.22.4
Properties And Equipment
12 Months Ended
Dec. 31, 2022
Properties And Equipment [Abstract]  
Properties And Equipment

13.    Properties and Equipment

A summary of properties and equipment follows (in thousands):

December 31,

2022

2021

Land

$

11,862

$

11,348

Buildings and building improvements

123,845

122,762

Transportation equipment

79,810

73,322

Machinery and equipment

154,603

143,335

Computer software

69,283

64,064

Furniture and fixtures

76,042

78,979

Projects under development

20,189

17,781

Total properties and equipment

535,634

511,591

Less accumulated depreciation

(335,920)

(317,911)

Net properties and equipment

$

199,714

$

193,680

The net book value of computer software at December 31, 2022 and 2021, was $8.9 million and $9.0 million, respectively. Depreciation expense for computer software was $5.5 million, $5.8 million and $5.5 million for the years ended December 31, 2022, 2021 and 2020, respectively.