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COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2021 | Mar. 26, 2020
Line of Credit Facility [Line Items] |  |  |  |
Term of lease contract, maximum renewal term |  |  | 12 years |
Purchase obligation |  |  | $ 424,600,000 |
Operating lease, Lease not yet commenced |  |  | $ 5,600,000 |
Operating lease, Lease not yet commenced, term |  |  | 10 years |
Section 301 Tariff Refunds |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Potential positive impact of approval of requested Tariff refunds |  |  |  | $ 38,900,000
Tariff refund | $ 14,700,000 | $ 24,800,000 |  |
Tariff refund receivable |  | 14,700,000 | $ 0 |
Recognized in current period |  | 38,900,000 |  |
Section 301 Tariff Refunds, Accrued Interest |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Potential positive impact of approval of requested Tariff refunds |  |  |  | $ 600,000
Recognized in current period |  | $ 600,000 |  |

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