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Restructuring Charges - General (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Pandemic Restructuring    
Restructuring charges    
Estimated additional charges $ 0.0  
Pandemic Restructuring | Severance costs    
Restructuring charges    
Restructuring charges incurred to date   $ 7.0
2020 Property Restructuring    
Restructuring charges    
Restructuring charges incurred to date   $ 1.5
Estimated additional charges $ 0.0