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Notes Payable and Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Principal components of long-term debt

The principal components of long-term debt are as follows (in millions):

			December 31, 2023						December 31, 2022
3.3%, Senior Notes due 2027			$	400.0					$	400.0
3.7%, Senior Notes due 2032			800.0						800.0
Less unamortized discounts and debt issuance costs			(10.5)						(12.4)
Long-term debt less unamortized discounts and debt issuance costs			1,189.5						1,187.6
Finance leases and other debt			10.1						10.6
Less current maturities			(0.5)						(0.5)
Long-term debt			$	1,199.1					$	1,197.7

Schedule of Maturities of Long-Term Debt

Maturities of finance leases and other debt at December 31, 2023 were as follows (in millions):

2024			$	0.5
2025			0.5
2026			0.5
2027			400.5
2028			0.5
2029 and thereafter			807.6
Total Maturities of finance leases and other debt			$	1,210.1

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