Equipment on operating leases is reported net of accumulated depreciation of $42.5 million and $34.4 million as of May 31, 2022 and August 31, 2021, respectively. Depreciation expense was $5.5 million and $15.9 million for the three and nine months ended May 31, 2022 and $3.3 million and $10.1 million for the three and nine months ended May 31, 2021, respectively. In addition, certain railcar equipment leased-in by the Company on operating leases is subleased to customers under non-cancelable operating leases with lease terms ranging from one to approximately fourteen years. Operating lease rental revenues included in the Company’s Statements of Income for the three and nine months ended May 31, 2022 was $16.0 million and $47.3 million, respectively, which included $3.8 million and $12.3 million, respectively, of revenue as a result of daily, monthly or car hire utilization arrangements. Operating lease rental revenues included in the Company’s Statements of Income for the three and nine months ended May 31, 2021 was $8.0 million and $32.1 million, respectively, which included $2.8 million and $10.2 million, respectively, of revenue as a result of daily, monthly or car hire utilization arrangements.

Aggregate minimum future amounts receivable under all non-cancelable operating leases and subleases at May 31, 2022, will mature as follows:


(in millions)
Remaining three months of 2022	$	12.9
2023		36.0
2024		29.3
2025		22.4
2026		19.6
Thereafter		56.5
	$	176.7

The Company leases railcars, real estate, and certain equipment under operating and, to a lesser extent, finance lease arrangements. As of and for the three and nine months ended May 31, 2022 and 2021, finance leases were not a material component of the Company's lease portfolio. The Company’s real estate and equipment leases have remaining lease terms ranging from less than one year to 76 years, with some including options to extend up to 15 years. The Company recognizes a lease liability and corresponding right-of-use (ROU) asset based on the present value of lease payments. To determine the present value of lease payments, as most of its leases do not provide a readily determinable implicit rate, the Company’s incremental borrowing rate is used to discount the lease payments based on information available at lease commencement date. The Company gives consideration to its recent debt issuances as well as publicly available data for instruments with similar characteristics when estimating its incremental borrowing rate.

The components of operating lease costs were as follows:


	Three Months Ended May 31,				Nine Months Ended May 31,
(in millions)	2022		2021		2022		2021
Operating lease expense	$	2.7	$	2.9	$	7.9	$	10.4
Short-term lease expense		1.1		1.0		3.8		3.6
Total	$	3.8	$	3.9	$	11.7	$	14.0

Aggregate minimum future amounts payable under operating leases having initial or remaining non-cancelable terms at May 31, 2022 will mature as follows:


(in millions)
Remaining three months of 2022	$	2.6
2023		10.4
2024		9.1
2025		6.4
2026		5.1
Thereafter		12.7
Total lease payments	$	46.3
Less: Imputed interest		(4.6	)
Total lease obligations	$	41.7

The table below presents additional information related to the Company’s leases:


Weighted average remaining lease term:
Operating leases	12.2 Years

Weighted average discount rate:
Operating leases		2.7	%

Supplemental cash flow information related to leases were as follows:


(in millions)	Nine months ended May 31, 2022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	8.6
ROU assets obtained in exchange for new operating lease liabilities	$	6.9