Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or the most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. A three-level fair value hierarchy prioritizes the inputs used to measure fair value. The hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows:

Level 2 — Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.

The following describes the valuation methodologies used for financial assets and liabilities measured or disclosed at fair value on a recurring basis, as well as the general classification within the valuation hierarchy.

Cash equivalents consist of highly liquid financial instruments with original maturities of three months or less. The carrying value of these cash equivalents approximates fair value due to their short-term maturities.

Investment securities in non-qualified retirement plan assets are valued using observable market prices in active markets. Loans receivable are carried at outstanding principal amount. The estimated fair value is determined using an income-based approach, which includes market participant expectations of cash flows over the remaining useful life discounted to present value using an appropriate discount rate. The estimate requires subjective assumptions to be made, including those related to credit risk and discount rates.

The fair values of convertible debt investments are determined using scenario-based internally developed valuation models that consider a probability-weighted assessment of possible future cash flows related to the debt component and the conversion component of the instruments, discounted to present value using an appropriate discount rate. The probability of amendments to federal laws in the United States to allow for the general cultivation, distribution, and possession of cannabis, and the impact of such amendments on the value of the underlying investments are important assumptions in the fair value estimates. The valuation models and related assumptions require significant judgment. These and other assumptions are impacted by economic conditions and expectations of management and may change in the future based on period specific facts and circumstances.

Debt instruments are recorded at cost. The interest rate on borrowings under the Sixth A&R Credit Agreement fluctuates in accordance with the terms of the Sixth A&R Credit Agreement and thus the carrying value is a reasonable estimate of fair value. The fair values of the 4.000% Senior Notes, 4.375% Senior Notes, 4.500% Senior Notes and 5.250% Senior Notes are determined based on quoted market prices. The interest rate on the short-term debt associated with accounts receivable pledged under the Receivables Facility fluctuates in accordance with the terms of the Receivables Facility and thus the carrying value is a reasonable estimate of fair value.


		2022				2021
	Fair Value Hierarchy Level	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Assets
Cash equivalents	Level 1	$	64.3	$	64.3	$	222.5	$	222.5




Other
Investment securities in non-qualified retirement plan assets	Level 1	38.4		38.4		45.0		45.0
Loans receivable	Level 3	32.8		32.8		35.8		35.8
Convertible debt investments	Level 3	117.0		117.0		190.3		190.3

Liabilities




Debt instruments
Credit facilities – revolving loans	Level 2	300.5		300.5		—		—
Credit facilities – term loans	Level 2	975.0		975.0		670.0		670.0
Senior Notes due 2031 – 4.000%	Level 2	500.0		350.6		500.0		498.8
Senior Notes due 2032 – 4.375%	Level 2	400.0		284.0		400.0		402.0
Senior Notes due 2029 – 4.500%	Level 2	450.0		325.7		450.0		466.9
Senior Notes due 2026 – 5.250%	Level 2	250.0		230.0		250.0		258.1

Receivables facility	Level 2	75.0		75.0		—		—

Other debt	Level 2	12.7		12.7		11.9		11.9


	Year Ended September 30,
	2022		2021
Fair value at beginning of year	$	190.3	$	—
Purchases	25.0		193.1
Total realized / unrealized gains included in net earnings	3.7		0.3
Total realized / unrealized losses included in OCI	(102.0)		$	(3.1)
Fair value at end of year	$	117.0	$	190.3

The amortized cost basis of convertible debt investments was $222.1 and $193.4 at September 30, 2022 and 2021, respectively. At September 30, 2022 and 2021, gross unrealized losses on convertible debt investments were $105.1 and $3.1, respectively, and there were no gross unrealized gains. These investments have been in a continuous unrealized loss position for greater than 12 months as of September 30, 2022. The decline in fair value of the convertible debt investments is related to a decline in the value of the underlying conversion options and is not reflective of a credit risk associated with the notes. The Company believes it will recover its cost basis in the convertible debt securities and that the Company has the ability to hold the securities until they recover in value and had no intent to sell or convert them at September 30, 2022.