Fair Value Measurements (Tables)

3 Months Ended

Dec. 31, 2022

Fair Value Disclosures [Abstract]

Carrying Value and Estimated Fair Value of Long-term Debt, Including Current Matur

The carrying value and estimated fair value of our total long-term debt, including current maturities, were as follows (in millions):

	December 31, 2022				September 30, 2022
	Carrying		Fair		Carrying		Fair
	Value		Value		Value		Value
Long-term debt and finance leases, including current maturities(1)	$	701.3	$	635.6	$	615.3	$	541.7

(1) Current and prior period long-term debts' carrying and fair values exclude net debt issuance costs.