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Fair Value of Financial Instruments (Details) - USD ($) shares in Millions | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020 | Sep. 01, 2020 | Apr. 14, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | $ 259,185,000 | $ 258,304,000 |  |
Amount borrowed |  |  |  | $ 1,000
Fair value | 32,400,000 |  |  |
Senior Notes Due 2025 | Convertible Notes Payable |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Principal | 230,000,000 |  |  |
Amount borrowed | $ 391,300,000 |  |  | $ 230,000,000.0
Vitalware L L C |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Contingent consideration liabilities |  |  | $ (8,300,000) |
Shares issuable, contingent consideration (in shares) | 30.0 |  |  |
Contingent consideration paid in a combination cash | 50.00% |  |  |
Contingent consideration paid in a combination shares | 50.00% |  |  |
Level 3 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair value | $ 32,500,000 |  |  |
U.S. Treasury notes |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 49,130,000 | 59,389,000 |  |
Commercial paper |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 57,067,000 | 68,018,000 |  |
Corporate bonds |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 27,610,000 | 48,501,000 |  |
Asset-backed securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value |  | 3,009,000 |  |
Fair value, recurring |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Money market funds | 125,378,000 | 79,387,000 |  |
Contingent consideration liabilities | (32,444,000) | (31,264,000) |  |
Total | 226,741,000 | 227,040,000 |  |
Fair value, recurring | Level 1 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Money market funds | 125,378,000 | 79,387,000 |  |
Contingent consideration liabilities | 0 | 0 |  |
Total | 174,508,000 | 138,776,000 |  |
Fair value, recurring | Level 2 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Money market funds | 0 | 0 |  |
Contingent consideration liabilities | 0 | 0 |  |
Total | 84,677,000 | 119,528,000 |  |
Fair value, recurring | Level 3 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Money market funds | 0 | 0 |  |
Contingent consideration liabilities | (32,444,000) | (31,264,000) |  |
Total | (32,444,000) | (31,264,000) |  |
Fair value, recurring | U.S. Treasury notes |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 49,130,000 | 59,389,000 |  |
Fair value, recurring | U.S. Treasury notes | Level 1 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 49,130,000 | 59,389,000 |  |
Fair value, recurring | U.S. Treasury notes | Level 2 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 0 | 0 |  |
Fair value, recurring | U.S. Treasury notes | Level 3 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 0 | 0 |  |
Fair value, recurring | Commercial paper |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 57,067,000 | 68,018,000 |  |
Fair value, recurring | Commercial paper | Level 1 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 0 | 0 |  |
Fair value, recurring | Commercial paper | Level 2 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 57,067,000 | 68,018,000 |  |
Fair value, recurring | Commercial paper | Level 3 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 0 | 0 |  |
Fair value, recurring | Corporate bonds |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 27,610,000 | 48,501,000 |  |
Fair value, recurring | Corporate bonds | Level 1 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 0 | 0 |  |
Fair value, recurring | Corporate bonds | Level 2 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | 27,610,000 | 48,501,000 |  |
Fair value, recurring | Corporate bonds | Level 3 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value | $ 0 | 0 |  |
Fair value, recurring | Asset-backed securities |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value |  | 3,009,000 |  |
Fair value, recurring | Asset-backed securities | Level 1 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value |  | 0 |  |
Fair value, recurring | Asset-backed securities | Level 2 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value |  | 3,009,000 |  |
Fair value, recurring | Asset-backed securities | Level 3 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Fair Value |  | $ 0 |  |

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