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Restructuring (Tables)
6 Months Ended
Jun. 30, 2021
Restructuring and Related Activities [Abstract]  
Summary of Activity in Restructuring Accounts
The summary of the activity in the restructuring liability for the six months ended June 30, 2021, was as follows:
(in millions)Balance at December 31, 2020ProvisionCash
Expenditures
Non-cash
Items/
Currency Change
Balance at June 30, 2021
Employee termination costs(1)
$8.1 $3.4 $(5.1)$(0.1)$6.3 
Termination of lease agreements(2)
1.0 0.3 (0.7)1.3 1.9 
Other(3)
0.2 0.2 (0.2)(0.1)0.1 
Total restructuring liability$9.3 $3.9 $(6.0)$1.1 $8.3 

(1) We expect the remaining $6.3 million employee termination costs to be substantially paid in the next nine months.
(2) We expect the remaining $1.9 million lease termination costs to be substantially paid in the next nine months.
(3) We expect the remaining $0.1 million of other costs to be substantially paid in the next six months.

The summary of the activity in the restructuring liability for the six months ended June 30, 2020, was as follows:
(in millions)Balance at December 31, 2019ProvisionCash
Expenditures
Non-cash
Items/
Currency Change
Balance at June 30, 2020
Employee termination costs$10.7 $6.3 $(4.9)$(0.3)$11.8 
Termination of lease agreements0.6 — (0.5)— 0.1 
Other0.5 0.5 (0.3)(0.4)0.3 
Total restructuring liability$11.8 $6.8 $(5.7)$(0.7)$12.2