XML 71 R54.htm IDEA: XBRL DOCUMENT v3.20.4
Fair Value Measurements (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
ASSETS:    
Cash equivalents $ 54.2 $ 23.3
Trust assets 0.0 0.2
Surety bonds   1.8
Derivative instruments 15.1 19.7
TOTAL 69.3 45.0
LIABILITIES:    
Contingent obligation 0.0 0.0
Derivative instruments 16.7 4.2
TOTAL 16.7 4.2
Level 1    
ASSETS:    
Cash equivalents 54.2 23.3
Trust assets 0.0 0.2
Surety bonds   1.8
Derivative instruments 0.0 0.0
TOTAL 54.2 25.3
LIABILITIES:    
Contingent obligation 0.0 0.0
Derivative instruments 0.0 0.0
TOTAL 0.0 0.0
Level 2    
ASSETS:    
Cash equivalents 0.0 0.0
Trust assets 0.0 0.0
Surety bonds   0.0
Derivative instruments 12.1 9.1
TOTAL 12.1 9.1
LIABILITIES:    
Contingent obligation 0.0 0.0
Derivative instruments 16.7 1.3
TOTAL 16.7 1.3
Level 3    
ASSETS:    
Cash equivalents 0.0 0.0
Trust assets 0.0 0.0
Surety bonds   0.0
Derivative instruments 3.0 10.6
TOTAL 3.0 10.6
LIABILITIES:    
Contingent obligation 0.0 0.0
Derivative instruments 0.0 2.9
TOTAL $ 0.0 $ 2.9