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Business Acquisitions - Summary of Purchase Price Allocation as of Acquisition Date (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Jan. 03, 2022 | Dec. 31, 2021 | Dec. 31, 2020
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Business Acquisition [Line Items] |  |  |  |
Goodwill | $ 23,171 |  | $ 2,816 | $ 2,811
Forensic Logic |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash and cash equivalents |  | $ 303 |  |
Accounts receivable and contract asset, net |  | 220 |  |
Property and equipment, net |  | 200 |  |
Operating lease right-of-use asset |  | 1,893 |  |
Goodwill |  | 20,355 |  |
Other asset |  | 186 |  |
Accrued expenses and other current liabilities |  | (635) |  |
Operating lease liabilities |  | (1,893) |  |
Deferred revenue |  | (5,382) |  |
Total estimated consideration |  | 31,587 |  |
Forensic Logic | Software Technology |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Identifiable technology and intangible assets |  | 7,140 |  |
Forensic Logic | Tradename |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Identifiable technology and intangible assets |  | 1,000 |  |
Forensic Logic | Customer Relationships |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Identifiable technology and intangible assets |  | $ 8,200 |  |

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