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Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2022
Accounting Policies [Abstract] |
Schedule of Cash, Cash Equivalents, and Restricted Cash | The following table presents a reconciliation of cash, cash equivalents, and restricted cash as presented in the consolidated statements of cash flows (in thousands):
| Year Ended December 31,
| 2022 |  | 2021 |  | 2020
Cash and cash equivalents | $ | 148,132 |  |  | $ | 100,796 |  |  | $ | 112,462 |
Restricted cash, current | 2,249 |  |  | 791 |  |  | — |
Restricted cash, non-current | — |  |  | 2,373 |  |  | — |
Total cash, cash equivalents, and restricted cash | $ | 150,381 |  |  | $ | 103,960 |  |  | $ | 112,462 |
Schedule of Allowance for Doubtful Accounts | Activity in the allowance for doubtful accounts was as follows (in thousands):
| Year Ended December 31,
| 2022 |  | 2021 |  | 2020
Beginning balance | $ | 1,400 |  |  | $ | 1,400 |  |  | $ | 600 |
Additions | 1,298 |  |  | 410 |  |  | 984 |
Less: Write-offs, net of recoveries | (573) |  |  | (410) |  |  | (184) |
Ending balance | $ | 2,125 |  |  | $ | 1,400 |  |  | $ | 1,400 |
Schedule of Capitalized Contract Costs | The following table summarizes the activity of costs to obtain a contract with a customer for the years ended December 31, 2022, and 2021 (in thousands):
| Year Ended December 31,
| 2022 |  | 2021
Beginning balance | $ | 73,685 |  |  | $ | 52,097 |
Additional contract costs deferred | 49,816 |  |  | 51,283 |
Amortization of deferred contract costs | (37,517) |  |  | (29,695) |
Ending balance | $ | 85,984 |  |  | $ | 73,685 |
Schedule of Property and Equipment, Useful Life | The following table outlines the useful lives of our major asset categories:
Asset Category |  | Useful Life (in years)
Computer software |  | 3
Computer hardware |  | 3
Equipment |  | 5
Office furniture and fixtures |  | 10
Leasehold improvements |  | (a)
(a) - Leasehold improvements have an estimated useful life of the shorter of the useful life of the assets or the lease term.

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- Definition Tabular disclosure of cost capitalized in obtaining or fulfilling contract with customer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126905575&loc=SL49131252-203054 + Details
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