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Strategic Transformation and Restructuring, Impairment and Other Asset Charges (Tables)
 9 Months Ended
Sep. 30, 2022
Restructuring, Settlement and Impairment Provisions [Abstract]  
Restructuring and Related Costs
Restructuring, asset impairment charges and the net gain on sale of property and equipment are presented below:

Three Months Ended September 30,Nine Months Ended September 30,
(in millions)2022202120222021
Restructuring charges:
Costs associated with closing Tacoma$— $0.1 $0.8 $1.1 
Costs associated with closing Enid0.1 0.4 0.7 0.4 
Costs associated with closing Mequon— — — 0.6 
Total restructuring related charges0.1 0.5 1.5 2.1 
Asset impairment charges:
Other impairment charges0.4 — 3.4 0.2 
Total asset impairment charges0.4 — 3.4 0.2 
Gain on sale of property and equipment, net:
Gain on sale of property and equipment, net(0.4)(0.2)(0.4)(0.5)
Total gain on sale of property and equipment, net(0.4)(0.2)(0.4)(0.5)
Restructuring, impairment and other asset charges, net$0.1 $0.3 $4.5 $1.8 

Restructuring charges by segment are as follows:

Three Months Ended September 30,Nine Months Ended September 30,
(in millions)2022202120222021
Infrastructure Solutions$0.1 $0.5 $1.5 $1.5 
Materials Solutions— — — 0.6 
Total restructuring related charges$0.1 $0.5 $1.5 $2.1 
Schedule Of Asset Impairment Charges
Impairment charges by segment are as follows:

Three Months Ended September 30,Nine Months Ended September 30,
(in millions)2022202120222021
Infrastructure Solutions$0.4 $— $2.5 $— 
Materials Solutions— — — 0.2 
Corporate and Other— — 0.9 — 
Total impairment charges$0.4 $— $3.4 $0.2 
Schedule of Fixed Asset Sales
Net gains on sale of property and equipment by segment are as follows:

Three Months Ended September 30,Nine Months Ended September 30,
(in millions)2022202120222021
Infrastructure Solutions$(0.4)$(0.2)$(0.4)$(0.4)
Materials Solutions— — — (0.1)
Total gain on sale of property and equipment, net$(0.4)$(0.2)$(0.4)$(0.5)