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Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2019
Fair Value Disclosures [Abstract]  
Schedule of assets and liabilities measured at fair value
Assets and liabilities measured at fair value on a recurring basis as of December 31, 2019 and 2018 are summarized below (in millions):
 
As of December 31, 2019
 
Level 1
Level 2
Level 3
Total
Derivative assets
$

$
39.3

$

$
39.3

Derivative liabilities

15.0


15.0

 
As of December 31, 2018
 
Level 1
Level 2
Level 3
Total
Derivative assets
$

$
24.7

$

$
24.7

Derivative liabilities

6.6


6.6