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Debt (Tables)
3 Months Ended
Mar. 31, 2022
Debt Disclosure [Abstract]  
Schedule of Net Carrying Amount of Liability and Equity Components of Notes

The net carrying amount of the liability and equity components of the 2026 Notes and 2024 Notes as of March 31, 2022 were as follows (in millions):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2024 Notes

 

 

2026 Notes

 

 

Total

 

Liability component:

 

 

 

 

 

 

 

 

 

 

 

 

Principal

 

$

690.0

 

 

$

874.5

 

 

$

1,564.5

 

Unamortized transaction costs

 

 

(8.2

)

 

 

(14.2

)

 

 

(22.4

)

Net carrying amount

 

$

681.8

 

 

$

860.3

 

 

$

1,542.1

 

The net carrying amount of the liability and equity components of the 2026 Notes and 2024 Notes as of December 31, 2021 were as follows (in millions):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2024 Notes

 

 

2026 Notes

 

 

Total

 

Liability component:

 

 

 

 

 

 

 

 

 

 

 

 

Principal

 

$

690.0

 

 

$

874.5

 

 

$

1,564.5

 

Unamortized debt discount

 

 

(60.5

)

 

 

(140.6

)

 

 

(201.1

)

Unamortized transaction costs

 

 

(7.6

)

 

 

(12.0

)

 

 

(19.6

)

Net carrying amount

 

$

621.9

 

 

$

721.9

 

 

$

1,343.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Equity component, net of transaction costs

 

$

114.9

 

 

$

163.7

 

 

$

278.6

 

Schedule of Interest Expense Recognized Related to Notes

Interest expense recognized related to the 2026 Notes and 2024 Notes was as follows (in millions):

 

 

 

Three Months Ended March 31,

 

 

 

2022

 

 

2021

 

Contractual interest expense

 

$

0.4

 

 

$

0.4

 

Amortization of debt discount

 

 

 

 

 

12.0

 

Amortization of transaction costs

 

 

1.6

 

 

 

1.2

 

Total

 

$

2.0

 

 

$

13.6