Property, Plant and Equipment

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Note 10.  Property, Plant and Equipment

The major categories of property, plant and equipment and accumulated depreciation and depletion are presented below:

	December 31,
(millions of dollars)	2023			2022
Mineral rights and reserves	$	552.6		$	604.9
Land		44.5			47.3
Buildings		207.3			209.8
Machinery and equipment		1,201.1			1,248.0
Furniture and fixtures and other		140.0			137.1
Construction in progress		44.6			41.5
		2,190.1			2,288.6
Less: accumulated depreciation and depletion		(1,203.3	)		(1,238.2	)
Property, plant and equipment, net	$	986.8		$	1,050.4

In the third quarter of 2023, the Company recorded a $71.7 million non-cash impairment of long-lived assets charge related to its subsidiaries Barretts Minerals Inc. and Barretts Ventures Texas LLC within the Consumer & Specialties segment.  See Note 17 for further information.

Depreciation and depletion expense for the years ended December 31, 2023, 2022 and 2021 was $79.4 million, $76.3 million and $77.4 million, respectively.