Our operating leases expire at various dates through 2037 and are primarily for office space, cars, servers, and office equipment.

Our headquarters are located at 121 Seaport Boulevard, Boston, Massachusetts. In February 2019, we subleased a portion of our headquarters through June 30, 2022. We will receive approximately $9.1 million in sublease income over the term of the sublease.

The components of lease cost reflected in the Consolidated Statement of Operations for the three months ended December 31, 2021 and December 31, 2020 were as follows:

(in thousands)	Three months ended
	December 31, 2021			December 31, 2020
Operating lease cost	$	8,860		$	9,391
Short-term lease cost		540			548
Variable lease cost		2,490			2,387
Sublease income		(1,117	)		(1,084	)
Total lease cost	$	10,773		$	11,242

Supplemental cash flow and right-of-use assets information for the three months ended December 31, 2021 and December 31, 2020 was as follows:

(in thousands)	Three months ended
	December 31, 2021		December 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	15,865	$	14,060
Financing cash flows from financing leases	$	239	$	279
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	$	601	$	594
Financing leases	$	—	$	—

Supplemental balance sheet information related to the leases as of December 31, 2021 was as follows:

Weighted-average remaining lease term - operating leases	11.8 years
Weighted-average remaining lease term - financing leases	4.0 years
Weighted-average discount rate - operating leases		5.4	%
Weighted-average discount rate - financing leases		3.0	%

(in thousands)
Remainder of 2022	$	28,792
2023		29,469
2024		26,191
2025		22,652
2026		18,681
Thereafter		159,162
Total future lease payments	$	284,947
Less: imputed interest		(78,915	)
Total lease liability	$	206,032

As of December 31, 2021, we have net liabilities of $2.7 million related to excess facilities (compared to $3.6 million at September 30, 2021), representing $0.9 million of right-of-use assets and $3.6 million of lease obligations, of which $3.0 million is classified as short term and $0.6 million is classified as long term. Variable costs related to these exited facilities are included in our restructuring accrual. All expenses and income associated with exited facilities are included in restructuring and other charges, net (refer to Note 3. Restructuring and Other Charges).

In determining the amount of right-of-use assets for restructured facilities, we are required to estimate such factors as future vacancy rates, the time required to sublet properties and sublease rates. Updates to these estimates may result in revisions to the value of right-of-use assets recorded. The amounts recorded are based on the net present value of estimated sublease income. As of December 31, 2021, the right-of-use assets for exited facilities reflects discounted committed sublease income of approximately $0.9 million.

In the first quarter of 2022 and 2021, we made net payments of $0.7 million and $3.8 million, respectively, related to lease costs for exited facilities.