We have entered into various non-cancellable operating and finance lease agreements for certain of our offices, manufacturing and warehouse facilities, retail and service locations, equipment, vehicles, and solar energy systems, worldwide. We determine if an arrangement is a lease, or contains a lease, at inception and record the leases in our financial statements upon lease commencement, which is the date when the underlying asset is made available for use by the lessor.

Our leases, where we are the lessee, often include options to extend the lease term for up to 10 years. Some of our leases also include options to terminate the lease prior to the end of the agreed upon lease term. For purposes of calculating lease liabilities, lease terms include options to extend or terminate the lease when it is reasonably certain that we will exercise such options.

Lease expense for operating lease payments is recognized on a straight-line basis over the lease term. Certain operating leases provide for annual increases to lease payments based on an index or rate. We estimate the annual increase in lease payments based on the index or rate at the lease commencement date, for both our historical leases and for new leases commencing after January 1, 2019. Differences between the estimated lease payment and actual payment are expensed as incurred. Lease expense for finance lease payments is recognized as amortization expense of the finance lease ROU asset and interest expense on the finance lease liability over the lease term.

The balances for the operating and finance leases where we are the lessee are presented as follows (in thousands) within our consolidated balance sheet:

	March 31, 2019
Operating leases:
Operating lease right-of-use assets	$	1,253,027

Accrued liabilities and other	$	208,362
Other long-term liabilities		1,000,886
Total operating lease liabilities	$	1,209,248

Finance leases:
Solar energy systems, net	$	31,742
Property, plant and equipment, net		1,447,502
Total finance lease assets	$	1,479,244

Current portion of long-term debt and finance leases	$	353,115
Long-term debt and finance leases, net of current portion		1,137,927
Total finance lease liabilities	$	1,491,042

The components of lease expense are as follows (in thousands) within our consolidated statement of operations:

	Three Months Ended
	March 31, 2019
Operating lease expense:
Operating lease expense (1)	$	134,804

Finance lease expense:
Amortization of leased assets	$	57,265
Interest on lease liabilities		23,561
Total finance lease expense	$	80,826

Total lease expense	$	215,630

(1)	Includes short-term leases and variable lease costs, which are immaterial.

Other information related to leases where we are the lessee is as follows (in thousands):

	March 31, 2019
Weighted-average remaining lease term:
Operating leases	6.7 years
Finance leases	4.5 years

Weighted-average discount rate:
Operating leases		6.4	%
Finance leases		6.6	%

Supplemental cash flow information related to leases where we are the lessee is as follows (in thousands):

	Three Months Ended
	March 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	111,320
Operating cash flows from finance leases (interest payments)	$	22,820
Financing cash flows from finance leases	$	66,656
Leased assets obtained in exchange for new finance lease liabilities	$	217,847
Leased assets obtained in exchange for new operating lease liabilities	$	22,004

As of March 31, 2019, the maturities of our operating and finance lease liabilities (excluding short-term leases) are as follows (in thousands):

	Operating		Finance
	Leases		Leases
Nine months ending December 31, 2019	$	209,220	$	315,700
2020		258,435		413,362
2021		228,692		621,471
2022		182,345		277,952
2023		153,498		8,142
Thereafter		477,857		15,992
Total minimum lease payments		1,510,047		1,652,619
Less: Interest		300,799		161,577
Present value of lease obligations		1,209,248		1,491,042
Less: Current portion		208,362		353,115
Long-term portion of lease obligations	$	1,000,886	$	1,137,927

As of March 31, 2019, we have excluded from the table above an additional operating lease for a facility that has not yet commenced of $55.8 million. This operating lease is expected to commence in the second half of 2019 for an initial lease term of 11.5 years.

As previously reported in our Annual Report on Form 10-K for the year ended December 31, 2018 and under legacy lease accounting (ASC 840), future minimum lease payments under non-cancellable leases as of December 31, 2018 are as follows (in thousands):

	Operating		Finance
	Leases		Leases
2019	$	275,654	$	416,952
2020		256,931		503,545
2021		230,406		506,197
2022		182,911		23,828
2023		157,662		4,776
Thereafter		524,590		5,938
Total minimum lease payments	$	1,628,154		1,461,236
Less: Interest				122,340
Present value of lease obligations				1,338,896
Less: Current portion				345,714
Long-term portion of lease obligations			$	993,182

Under the new lease standard, we are the lessor of certain vehicle arrangements as described in Note 2, Summary of Significant Accounting Policies. As of March 31, 2019, maturities of our operating lease receivables from customers for each of the next five years and thereafter were as follows (in thousands):

Nine months ending December 31, 2019	$	392,255
2020		446,135
2021		293,069
2022		189,094
2023		188,787
Thereafter		2,469,055
Total	$	3,978,395

As previously reported in our Annual Report on Form 10-K for the year ended December 31, 2018 and under legacy lease accounting (ASC 840), future minimum lease payments to be received from customers under non-cancellable leases as of December 31, 2018 are as follows (in thousands):

2019	$	501,625
2020		418,299
2021		270,838
2022		186,807
2023		188,809
Thereafter		2,469,732
Total	$	4,036,110

The above tables do not include vehicle sales to customers or leasing partners with a resale value guarantee as the cash payments were received upfront. For our solar PPA arrangements, customers are charged solely based on actual power produced by the installed solar energy system at a predefined rate per kilowatt-hour of power produced. The future payments from such arrangements are not included in the above table as they are a function of the power generated by the related solar energy systems in the future. Following the adoption of the new lease standard, solar energy system sales and PPAs that commence after January 1, 2019, where we are the lessor and were previously accounted for as leases, will no longer meet the definition of a lease and are therefore not included in the table as of March 31, 2019 (refer to Note 2, Summary of Significant Accounting Policies).