7. Leases

Our lease portfolio consists of real estate, vehicles and equipment ROU assets, classified as operating leases. As of December 31, 2019, the remaining non-cancelable lease terms, inclusive of renewal options reasonably certain of exercise, range from one to 16 years.

The following table summarizes the ROU assets and the related lease liabilities recorded on the consolidated balance sheet:


	December 31,
As of	2019		Balance Sheet Classification
Assets:
Operating lease ROU assets	$	23,115	Other Assets

Liabilities:
Current portion		6,672	Accrued expenses and other current liabilities
Non-current portion		17,453	Other liabilities
Total operating lease liabilities	$	24,125

The following table summarizes the composition of net lease cost:


	Three months		Six months
For the Periods Ended December 31	2019		2019

Operating lease expense	$	1,911	$	3,762
Variable lease expense		307		631
Short-term lease expense		214		417
Total lease cost	$	2,432	$	4,810

The following tables include other supplemental information:


	Three months		Six months
For the Periods Ended December 31	2019		2019
Operating cash flows used for ROU operating leases	$	1,968	$	3,645
Right of use assets obtained in exchange for new operating lease liabilities	$	3,972	$	7,762


	As of
	December 31, 2019
Weighted average remaining lease term (in years) - ROU operating leases	6.4
Weighted average discount rate - ROU operating leases	4.17	%

At December 31, 2019, maturities of future lease liabilities were:


For the Years Ending June 30
2020	$	3,853
2021		6,627
2022		5,012
2023		2,765
2024		2,283
2025 and thereafter		7,273
Total lease payments		27,813
Less: interest		3,688
Total operating lease liabilities	$	24,125

There were no significant future payment obligations related to executed lease agreements for which the related lease had not yet commenced as of December 31, 2019. Our lease agreements do not contain any material restrictive covenants or residual value guarantee provisions.

Future minimum lease payments for operating leases accounted for under ASC 840, "Leases," with remaining non-cancelable terms in excess of one year at June 30, 2019 were:


For the Years Ending June 30
2020	$	5,815
2021		4,160
2022		3,191
2023		1,445
2024		865
Thereafter		765
Total minimum lease payments	$	16,241