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Restructuring Activities (Tables)
9 Months Ended
Sep. 30, 2021
Restructuring and Related Activities [Abstract]  
Summary of severance and other restructuring costs
The following table summarizes severance and other restructuring costs, which includes employee-related costs, facility rent and exit costs, relocation, recruiting, travel and other:
Three Months Ended September 30,Nine Months Ended September 30,
2021202020212020
Severance:
Cost of sales$0.4 $0.6 $0.4 $4.5 
Selling, general, and administrative expenses— 0.7 0.3 5.5 
Total severance costs0.4 1.3 0.7 10.0 
Other restructuring:
Cost of sales1.5 0.6 2.2 0.6 
Selling, general, and administrative expenses— — — 2.1 
Total other restructuring costs1.5 0.6 2.2 2.7 
Total restructuring costs$1.9 $1.9 $2.9 $12.7 
Schedule of rollforward of restructuring cost
The following tables summarize our restructuring activities for the three and nine months ended September 30, 2021 and 2020:
Three Months Ended September 30, 2021
Cryo Tank SolutionsHeat Transfer SystemsSpecialty ProductsRepair, Service & LeasingCorporateConsolidated
Balance at June 30, 2021$0.3 $(0.1)$— $— $— $0.2 
Restructuring charges— 0.5 — 1.4 — 1.9 
Cash payments and other— (0.3)— 0.1 — (0.2)
Balance at September 30, 2021$0.3 $0.1 $— $1.5 $— $1.9 
Three Months Ended September 30, 2020
Cryo Tank SolutionsHeat Transfer SystemsSpecialty ProductsRepair, Service & LeasingCorporateConsolidated
Balance at June 30, 2020$1.4 $0.2 $— $— $0.3 $1.9 
Restructuring charges0.3 1.1 — 0.1 0.4 1.9 
Cash payments and other(0.6)(1.1)— (0.1)(0.4)(2.2)
Balance at September 30, 2020$1.1 $0.2 $— $— $0.3 $1.6 

Nine Months Ended September 30, 2021
Cryo Tank SolutionsHeat Transfer SystemsSpecialty ProductsRepair, Service & LeasingCorporateConsolidated
Balance at December 31, 2020$0.5 $0.2 $— $— $0.1 $0.8 
Restructuring charges0.3 1.2 — 1.4 — 2.9 
Cash payments and other(0.5)(1.3)— 0.1 (0.1)(1.8)
Balance at September 30, 2021$0.3 $0.1 $— $1.5 $— $1.9 

Nine Months Ended September 30, 2020
Cryo Tank SolutionsHeat Transfer SystemsSpecialty ProductsRepair, Service & LeasingCorporateConsolidated
Balance at December 31, 2019$0.5 $0.2 $— $— $0.2 $0.9 
Restructuring charges3.2 6.8 — 0.1 2.6 12.7 
Cash payments and other(2.6)(6.8)— (0.1)(2.5)(12.0)
Balance at September 30, 2020$1.1 $0.2 $— $— $0.3 $1.6