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Transactions - Vital Decisions (Details) - USD ($) $ in Thousands, shares in Millions |  | 12 Months Ended
--- | --- | ---
Oct. 01, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Purchase consideration: |  |  |  |
Cash |  | $ 49,012 | $ 300 | $ 8,575
Liabilities assumed: |  |  |  |
Goodwill |  | $ 426,297 | $ 349,029 | $ 566,359
Customer relationships |  |  |  |
Liabilities assumed: |  |  |  |
Useful life |  | 14 years 10 months 24 days | 16 years 2 months 12 days |
Technology |  |  |  |
Liabilities assumed: |  |  |  |
Useful life |  | 2 years | 1 year 9 months 18 days |
Corporate trade name |  |  |  |
Liabilities assumed: |  |  |  |
Useful life |  | 12 years 4 months 24 days | 13 years 2 months 12 days |
Vital Decisions |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Voting interests acquired | 100.00% |  |  |
Equity interest issued or issuable, number of shares (in shares) | 1.8 |  |  |
Contingent consideration arrangements (up to) | $ 45,000 |  |  |
Purchase consideration: |  |  |  |
Cash | 46,500 |  |  |
Fair value of Class A common stock issued | 56,626 |  |  |
Fair value of contingent consideration | 14,600 |  |  |
Total consideration | 117,726 |  |  |
Tangible assets acquired: |  |  |  |
Cash and cash equivalents | 1,430 |  |  |
Accounts receivable | 3,301 |  |  |
Prepaid expenses and other current assets | 78 |  |  |
Other non-current assets | 2,564 |  |  |
Total tangible assets acquired | 7,373 |  |  |
Identifiable intangible assets acquired: |  |  |  |
Identifiable intangible assets | 40,000 |  |  |
Liabilities assumed: |  |  |  |
Accounts payable | 93 |  |  |
Accrued liabilities | 661 |  |  |
Accrued compensation and employee benefits | 970 |  |  |
Deferred tax liabilities, net | 499 |  |  |
Deferred revenue | 2,000 |  |  |
Operating lease liabilities | 2,712 |  |  |
Total liabilities assumed | 6,935 |  |  |
Goodwill | 77,288 |  |  |
Net assets acquired | 117,726 |  |  |
Goodwill, expected tax deductible amount | 69,600 |  |  |
Vital Decisions | Customer relationships |  |  |  |
Identifiable intangible assets acquired: |  |  |  |
Identifiable intangible assets | $ 32,500 |  |  |
Liabilities assumed: |  |  |  |
Useful life | 13 years |  |  |
Vital Decisions | Technology |  |  |  |
Identifiable intangible assets acquired: |  |  |  |
Identifiable intangible assets | $ 5,000 |  |  |
Liabilities assumed: |  |  |  |
Useful life | 5 years |  |  |
Vital Decisions | Corporate trade name |  |  |  |
Identifiable intangible assets acquired: |  |  |  |
Identifiable intangible assets | $ 2,500 |  |  |
Liabilities assumed: |  |  |  |
Useful life | 15 years |  |  |

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