March 31,

December 31,

2024

2023

(in millions)

Unsecured revolving credit facility maturing September 3, 2025

$

—

$

—

Senior unsecured notes, interest payable semi-annually at 1.30%, effective rate of 1.53%, maturing August 15, 2025

400.0

Senior unsecured notes, interest payable semi-annually at 2.15%, effective rate of 2.27%, maturing August 15, 2030

500.0

Senior unsecured notes, interest payable semi-annually at 6.85%, effective rate of 6.91%, maturing November 15, 2036

250.0

Other notes

1.4

Total

1,151.4

Less: unamortized discount and debt issuance costs

(8.5)

(9.2)

Less: amounts due within one year

(0.3)

Total long-term debt

$

1,142.6

$

1,141.9