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FAIR VALUE MEASUREMENTS - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Assets [Abstract] |  |
Marketable securities: | $ 966,881 |
Liabilities: |  |
Contingent consideration | 3,710 | $ 0
Certificate of deposit |  |
Assets [Abstract] |  |
Marketable securities: | 15,999 |
Commercial paper |  |
Assets [Abstract] |  |
Marketable securities: | 215,850 |
Corporate notes and bonds |  |
Assets [Abstract] |  |
Marketable securities: | 198,372 |
U.S. Government agencies |  |
Assets [Abstract] |  |
Marketable securities: | 485,873 |
U.S. Treasuries |  |
Assets [Abstract] |  |
Marketable securities: | 14,998 |
Recurring | Level 1 |  |
Assets [Abstract] |  |
Investments in debt securities | 0 | 0
Total assets measured at fair value | 35,789 | 654,699
Liabilities: |  |
Contingent consideration | 0 | 0
Warranty obligations |  |
Current | 0 | 0
Non-current | 0 | 0
Total warranty obligations measured at fair value | 0 | 0
Total liabilities measured at fair value | 0 | 0
Recurring | Level 1 | Certificate of deposit |  |
Assets [Abstract] |  |
Marketable securities: | 0 | 0
Recurring | Level 1 | Commercial paper |  |
Assets [Abstract] |  |
Marketable securities: | 0 | 0
Recurring | Level 1 | Corporate notes and bonds |  |
Assets [Abstract] |  |
Marketable securities: | 0 | 0
Recurring | Level 1 | U.S. Government agencies |  |
Assets [Abstract] |  |
Marketable securities: | 0 | 0
Recurring | Level 1 | U.S. Treasuries |  |
Assets [Abstract] |  |
Marketable securities: | 0 | 0
Recurring | Level 1 | Money market funds |  |
Assets [Abstract] |  |
Cash and cash equivalents | 35,789 | 654,699
Recurring | Level 1 | Certificate of deposit |  |
Assets [Abstract] |  |
Cash and cash equivalents | 0 | 0
Recurring | Level 1 | Commercial paper |  |
Assets [Abstract] |  |
Cash and cash equivalents | 0 | 0
Recurring | Level 1 | Corporate notes and bonds |  |
Assets [Abstract] |  |
Cash and cash equivalents | 0 | 0
Recurring | Level 2 |  |
Assets [Abstract] |  |
Investments in debt securities | 0 | 0
Total assets measured at fair value | 931,092 | 0
Liabilities: |  |
Contingent consideration | 0 | 0
Warranty obligations |  |
Current | 0 | 0
Non-current | 0 | 0
Total warranty obligations measured at fair value | 0 | 0
Total liabilities measured at fair value | 0 | 0
Recurring | Level 2 | Certificate of deposit |  |
Assets [Abstract] |  |
Marketable securities: | 9,999 | 0
Recurring | Level 2 | Commercial paper |  |
Assets [Abstract] |  |
Marketable securities: | 188,853 | 0
Recurring | Level 2 | Corporate notes and bonds |  |
Assets [Abstract] |  |
Marketable securities: | 197,612 | 0
Recurring | Level 2 | U.S. Government agencies |  |
Assets [Abstract] |  |
Marketable securities: | 485,873 | 0
Recurring | Level 2 | U.S. Treasuries |  |
Assets [Abstract] |  |
Marketable securities: | 14,998 | 0
Recurring | Level 2 | Money market funds |  |
Assets [Abstract] |  |
Cash and cash equivalents | 0 | 0
Recurring | Level 2 | Certificate of deposit |  |
Assets [Abstract] |  |
Cash and cash equivalents | 6,000 | 0
Recurring | Level 2 | Commercial paper |  |
Assets [Abstract] |  |
Cash and cash equivalents | 26,997 | 0
Recurring | Level 2 | Corporate notes and bonds |  |
Assets [Abstract] |  |
Cash and cash equivalents | 760 | 0
Recurring | Level 3 |  |
Assets [Abstract] |  |
Investments in debt securities | 41,042 | 0
Total assets measured at fair value | 41,042 | 0
Liabilities: |  |
Contingent consideration | 3,710 | 0
Warranty obligations |  |
Current | 14,612 | 8,267
Non-current | 36,395 | 20,469
Total warranty obligations measured at fair value | 51,007 | 28,736
Total liabilities measured at fair value | 54,717 | 28,736
Recurring | Level 3 | Certificate of deposit |  |
Assets [Abstract] |  |
Marketable securities: | 0 | 0
Recurring | Level 3 | Commercial paper |  |
Assets [Abstract] |  |
Marketable securities: | 0 | 0
Recurring | Level 3 | Corporate notes and bonds |  |
Assets [Abstract] |  |
Marketable securities: | 0 | 0
Recurring | Level 3 | U.S. Government agencies |  |
Assets [Abstract] |  |
Marketable securities: | 0 | 0
Recurring | Level 3 | U.S. Treasuries |  |
Assets [Abstract] |  |
Marketable securities: | 0 | 0
Recurring | Level 3 | Money market funds |  |
Assets [Abstract] |  |
Cash and cash equivalents | 0 | 0
Recurring | Level 3 | Certificate of deposit |  |
Assets [Abstract] |  |
Cash and cash equivalents | 0 | 0
Recurring | Level 3 | Commercial paper |  |
Assets [Abstract] |  |
Cash and cash equivalents | 0 | 0
Recurring | Level 3 | Corporate notes and bonds |  |
Assets [Abstract] |  |
Cash and cash equivalents | $ 0 | $ 0

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