v3.26.3
LONG-TERM DEBT (Tables)
9 Months Ended
Sep. 30, 2026
LONG-TERM DEBT  
Schedule of long-term debt

​

​

​

​

​

​

​

​

​

​

September 30, 

​

December 31, 

​

  ​ ​ ​

2026

  ​ ​ ​

2025

​

​

(in millions)

2.5% Convertible Notes due 2028

​

$

136.4

​

$

575.0

0.0% Convertible Notes due 2031

​

​

1,150.0

​

​

—

Less: unamortized debt discount and issuance costs

​

​

(20.5)

​

​

(7.5)

Carrying amount, net

​

​

1,265.9

​

​

567.5

Less: current maturities

​

​

(136.4)

​

​

(567.5)

Net long-term debt

​

$

1,129.5

​

$

—

Schedule of interest expense

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended September 30, 

​

Nine Months Ended September 30, 

​

​

  ​ ​ ​

2026

  ​ ​ ​

2025

  ​ ​ ​

2026

  ​ ​ ​

2025

​

​

​

(in millions)

​

Interest expense

​

$

0.7

​

$

3.4

​

$

7.0

​

$

10.3

​

Amortization of debt issuance costs

​

​

2.3

​

​

0.8

​

​

4.0

​

​

2.3

​

Total interest expense related to debt

​

$

3.0

​

$

4.2

​

$

11.0

​

$

12.6

​