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Property, Plant and Equipment (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Nov. 30, 2021	Sep. 27, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross			$ 2,296.4	$ 2,276.9
Less: accumulated depreciation and depletion			(1,247.3)	(1,237.3)
Property, plant and equipment, net			1,049.1	1,039.6
Property, Plant and Equipment [Abstract]
Depreciation and depletion expense			77.4	77.9	$ 82.1
Mineral Rights and Reserves [Member]
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross			554.7	565.8
Land [Member]
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross			50.6	50.9
Buildings [Member]
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross			229.2	225.6
Machinery and Equipment [Member]
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross			1,262.8	1,254.3
Furniture and Fixtures and Other [Member]
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross			139.9	138.9
Construction in Progress [Member]
Property, plant and equipment, net [Abstract]
Property, plant and equipment, gross			$ 59.2	$ 41.4
Specialty PCC Assets from Company in Midwest United States [Member]
Property, Plant and Equipment [Abstract]
Acquisition of assets	$ 6.9
Assets of Mining and Hauling Company in Western United States [Member]
Property, Plant and Equipment [Abstract]
Acquisition of assets		$ 9.2

X

- 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 and The noncash expense charged against earnings to recognize the consumption of natural resources that are not part of an entity's cost of goods sold.

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

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Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

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