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Leases
12 Months Ended
Dec. 31, 2021
Leases [Abstract]  
Leases Leases
We account for leases in accordance with Accounting Standards Codification Topic 842, Leases. We determine if an arrangement is a lease at inception. Our lease portfolio is primarily composed of operating leases for corporate offices and as of January 1, 2019 with the adoption of the new guidance for leasing arrangements, are included in operating lease right-of-use (“ROU”) assets and lease liabilities on our consolidated balance sheets. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and lease liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As the Company's leases generally do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date. In determining the present value of lease payments, we utilized the assistance of third-party specialists to assist us in determining our yield curve based upon our credit rating, lease term and adjustment for security. The operating lease ROU asset also includes any lease payments made and excludes lease incentives. Our lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for lease payments is recognized on a straight-line basis over the lease term.

Our leases have remaining lease terms of 2 to 8 years. Certain of these leases have free or escalating rent payment provisions. We recognize lease expense on a straight-line basis over the terms
of the leases, although actual cash payment obligations under certain of these agreements fluctuate over the terms of the agreements. Most leases include options to renew, and the exercise of these options is at our discretion.

Total operating lease expenses were $7.7 million, $7.8 million, and $6.4 million for the years ended December 31, 2021, 2020 and 2019, respectively. We have a sublease agreement for our office space in Mountain View, California to sublease to a third party, which commenced in December 2018 and will expire in July 2023. We recorded $1.2 million and $1.2 million of sublease income during the years ended December 31, 2021 and 2020, respectively.


The following table summarizes the lease-related assets and liabilities recorded on the Consolidated Balance Sheet for the periods presented below (in thousands):
December 31, 2021December 31, 2020
Operating lease right-of-use assets$37,373 $42,558 
Lease liabilities – current$5,543 $5,192 
Lease liabilities – non-current35,826 41,369 
Total operating lease liabilities$41,369 $46,561 

Supplemental information related to leases are as follows (in thousands):
December 31, 2021December 31, 2020
Operating cash outflows from operating leases$7,640$7,090
Non-cash investing activities relating to operating lease right-of-use assets$$10,919
Weighted-average remaining lease term of operating leases6.3 years7.2 years
Weighted-average discount rate used to recognize operating lease right-of-use-assets5.4 %5.4 %

As of December 31, 2021, maturities of operating lease liabilities are as follows (in thousands):
Year ending December 31,
2022$7,701 
20238,033 
20247,832 
20258,009 
20266,739 
Thereafter12,668 
Total lease payments (1)
50,982 
Less imputed interest(9,613)
Total$41,369 
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(1)Noncancellable sublease income for the years ending December 31, 2022 and 2023 of $0.4 million and $0.4 million, respectively, is not included in the table above.