Note 13. Leases

Our operating lease activities consist of leases for office space and equipment. Our finance lease activities consist of leases for hardware which we will own at the end of the lease agreement. None of our lease agreements include variable lease payments. See discussion of the January 1, 2019 implementation impact at Note 1. Basis of Presentation and Summary of Significant Accounting Policies.

Supplemental balance sheet information as of September 30, 2019 for our leases is as follows:


		As of		As of
Leases	Classification	September 30, 2019		December 31, 2018
Assets
Noncurrent:
Finance	Office and other equipment, net of accumulated depreciation and amortization	$	5,826	$	14,564
Operating	Operating lease right-of-use assets		500,615		592,065
Total leased assets		$	506,441	$	606,629

Liabilities
Current:
Finance lease	Finance lease liabilities	$	3,720	$	9,299
Noncurrent:
Operating lease	Operating lease liabilities		554,921		646,519
Total leased liabilities		$	558,641	$	655,818

The difference between assets and liabilities includes a $5,266 adjust to the finance lease and a $54,454 adjustment to an operating lease, both at the beginning of the period as part of the ASC 842 implementation adjustment.

Our operating and finance leases expenses for the three and nine months ended September 30, 2019 are as follows:


		Three months ended September 30,				Nine months ended September 30,
Leases	Classification	2019		2018		2019		2018
Operating	General and administrative expense	$	3,344	$	4,609	$	10,453	$	13,829

Finance lease cost:
	Amortization expense		2,914		1,120		8,739		3,360
	Interest expense		111		111		333		333

Minimum contractual obligations for our leases as of September 30, 2019 are as follows:


	Operating Leases		Finance Lease
2019 (excluding nine months ended September 30, 2019)	$	39,079	$	2,133
2020		160,958		2,133
2021		164,081		—
2022		156,608		—
2023		161,674		—
2024		13,508		—
Total remaining lease payments	$	695,908	$	4,266

Supplemental cash flow information related to leases was as follows:


	Three months ended September 30,				Nine months ended September 30,
	2019		2018		2019		2018
Cash payments
Operating cash flows from operating leases	$	(190)	$	1,076	$	(148)	$	3,228
Operating cash flows from finance leases		1,164		(628)		2,328		(1,258)
Financing cash flows from finance leases		(111)		(111)		(333)		(333)

The weighted average remaining lease terms of our finance and operating leases were six months and approximately three years, respectively and as of September 30, 2019. As of December 31, 2018 the weighted average remaining lease terms of our finance and operating leases were fifteen months and three and a half years, respectively. The weighted average discount rates used to determine the lease liabilities for finance leases was 6% and operating leases was 8% as of September 30, 2019 and December 31, 2018, respectively. The discount rate used for finance leases was based on the rates implicit in the leases. The discount rate used for operating leases was based on our incremental borrowing rate.