The Company's primary operating lease is for space at a data center which was renewed in April 2022 and expires in 2025. The lease for the Company's San Francisco, California headquarters, the Company's largest office, expired in July 2022. Effective as of August 1, 2022, the Company entered into an agreement for a new, significantly smaller headquarters office space in San Francisco, California under a short-term lease.

As of December 31, 2022 and 2021, the Company had net operating lease ROU assets of $3,844 and $1,660, respectively. Operating lease costs, consisting primarily of rental expense, were approximately $3,654 and $6,085 for the years ended December 31, 2022 and 2021, respectively. Variable rent expense was not material for the years ended December 31, 2022 or 2021.

As of December 31, 2022, the weighted-average rate used in discounting the lease liabilities for ROU operating leases was 6.0% and the weighted average remaining lease term for ROU operating leases was 2.2 years. The maturities of operating lease liabilities as of December 31, 2022 are as follows:


	Operating Leases
2023	$	1,822
2024		1,822
2025		455
Total lease payments		4,099
Less: Amount representing imputed interest		(255	)
Present value of lease liabilities		3,844
Less: Current portion of lease liabilities		(1,645	)
Non-current portion of lease liabilities	$	2,199

Supplemental cash flow information related to operating leases was as follows:


	Year Ended		Year Ended
	December 31, 2022		December 31, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Financing cash flows from finance leases	$	—	$	15
Operating cash flows from operating leases		3,974		6,562

ROU assets obtained in exchange for lease liabilities:
Operating lease liabilities	$	5,015	$	—

The Company sublet portions of its San Francisco office space which expired during 2022. Income from this sublease agreement was included in other income, net, on the accompanying consolidated statements of comprehensive loss. Sublease income for the years ended December 31, 2022 and 2021 was $587 and $1,084, respectively.