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FAIR VALUE MEASUREMENTS - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Assets [Abstract] |  |
Marketable securities: | $ 1,185,274 | $ 966,881
Liabilities: |  |
Contingent consideration | 0 | 3,710
Certificates of deposit |  |
Assets [Abstract] |  |
Marketable securities: | 3,102 | 15,999
Commercial paper |  |
Assets [Abstract] |  |
Marketable securities: | 121,070 | 215,850
Corporate notes and bonds |  |
Assets [Abstract] |  |
Marketable securities: | 141,250 | 198,372
U.S. Government agencies |  |
Assets [Abstract] |  |
Marketable securities: | 447,362 | 485,873
U.S. Treasuries |  |
Assets [Abstract] |  |
Marketable securities: | 39,544 | 14,998
Recurring | Level 1 |  |
Assets [Abstract] |  |
Investments in debt securities | 0 | 0
Total assets measured at fair value | 432,946 | 35,789
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 | Certificates 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 | 432,946 | 35,789
Recurring | Level 1 | Certificates 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 | 752,328 | 931,092
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 | Certificates of deposit |  |
Assets [Abstract] |  |
Marketable securities: | 3,102 | 9,999
Recurring | Level 2 | Commercial paper |  |
Assets [Abstract] |  |
Marketable securities: | 121,070 | 188,853
Recurring | Level 2 | Corporate notes and bonds |  |
Assets [Abstract] |  |
Marketable securities: | 141,250 | 197,612
Recurring | Level 2 | U.S. Government agencies |  |
Assets [Abstract] |  |
Marketable securities: | 447,362 | 485,873
Recurring | Level 2 | U.S. Treasuries |  |
Assets [Abstract] |  |
Marketable securities: | 39,544 | 14,998
Recurring | Level 2 | Money market funds |  |
Assets [Abstract] |  |
Cash and cash equivalents | 0 | 0
Recurring | Level 2 | Certificates of deposit |  |
Assets [Abstract] |  |
Cash and cash equivalents | 0 | 6,000
Recurring | Level 2 | Commercial paper |  |
Assets [Abstract] |  |
Cash and cash equivalents | 0 | 26,997
Recurring | Level 2 | Corporate notes and bonds |  |
Assets [Abstract] |  |
Cash and cash equivalents | 0 | 760
Recurring | Level 3 |  |
Assets [Abstract] |  |
Investments in debt securities | 40,913 | 41,042
Total assets measured at fair value | 40,913 | 41,042
Liabilities: |  |
Contingent consideration | 0 | 3,710
Warranty obligations |  |
Current | 24,772 | 14,612
Non-current | 49,151 | 36,395
Total warranty obligations measured at fair value | 73,923 | 51,007
Total liabilities measured at fair value | 73,923 | 54,717
Recurring | Level 3 | Certificates 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 | Certificates 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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