We determine whether a contract is, or contains, a lease at inception. ROU assets represent our right to use an underlying asset during the lease term, and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and lease liabilities are recognized at lease commencement based upon the estimated present value of unpaid lease payments over the lease term. We use our incremental borrowing rate based on the information available at lease commencement in determining the present value of unpaid lease payments. ROU assets also include any lease payments made at or before lease commencement and any initial direct costs incurred, and exclude any lease incentives received.

We determine the lease term as the non-cancellable period of the lease, and may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Leases with a term of 12 months or less are not recognized on the balance sheet. Some of our leases include variable lease payments that are based on costs incurred or actual usage, or adjusted periodically based on an index or a rate. Our leases do not contain any residual value guarantees and we do not account for lease and non-lease components as a single lease component. Operating leases are included in operating lease right-of-use assets and operating lease liabilities on our consolidated balance sheets. We lease certain office space, warehouses and distribution centers, manufacturing facilities, vehicles, and equipment with remaining lease terms ranging from less than 1 year to 15 years, some of which include options to extend or terminate the leases.

Operating lease costs for the year ended June 30, 2020 were $26.5 million. Short-term and variable lease costs were not material for the year ended June 30, 2020.

Future minimum lease payments under non-cancellable leases as of June 30, 2020 and for the periods ending June 30 of the years indicated below were as follows (in thousands):


	Total		2021		2022		2023		2024		2025		Thereafter
Minimum lease payments	$	143,774	$	24,810	$	18,084	$	14,853	$	12,075	$	10,493	$	63,459
Less: imputed interest		(20,631)
Total lease liabilities	$	123,143

As of June 30, 2020, we had additional operating lease commitments of $14.1 million for office space that have not yet commenced. These leases will commence during the year ended June 30, 2021 with lease terms of 1 years to 11 years.

The supplemental information related to operating leases for the year ended June 30, 2020 was as follows (in thousands):


	2020
Weighted-average inputs:
Weighted-average remaining lease term (years)		9.1
Weighted-average discount rate		3.2	%

Cash flow information:
Operating cash flows paid for amounts included in the measurement of lease liabilities	$	24,104
Right of use assets obtained in exchange for new lease liabilities:	$	51,663

We lease certain facilities and equipment under operating leases expiring at various dates and most contain renewal options. Total expense for all operating leases was $23.4 million, $21.1 million, and $20.1 million for the years ended June 30, 2019, 2018, and 2017, respectively. Future minimum lease payments (including interest) under non-cancellable operating leases at June 30, 2019 were as follows (in thousands):


	Total		2020		2021		2022		2023		2024		Thereafter
Remaining operating lease payments	$	98,013	$	23,500	$	17,161	$	12,403	$	9,478	$	7,916	$	27,555

We lease sleep and respiratory medical devices to customers primarily as a means to comply with local health insurer requirements in certain foreign geographies. Device rental contracts include sales-type and operating leases, and contract terms vary by customer and include options to terminate or extend the contract. When lease contracts also include the sale of masks and accessories, we allocate contract consideration to those items on a relative standalone price basis and recognize revenue when control transfers to the customer.

The components of lease revenue for the year ended June 30, 2020 were as follows (in thousands):

Our net investment in sales-type leases were classified in the accompanying consolidated balance sheets captions as of June 30, 2020 as follows (in thousands):

Maturities of sales-type leases as of June 30, 2020 were as follows (in thousands):


	Total		2021		2022		2023		2024		2025		Thereafter
Remaining lease payments	$	16,074	$	8,034	$	5,759	$	2,281	$	-	$	-	$	-
Less: imputed interest		(1,420)
Present value of remaining lease payments	$	14,654