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DEBT - Paycheck Protection Program Loan (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 16, 2020 | Dec. 31, 2019 | Oct. 01, 2019 | Dec. 31, 2020 | Dec. 31, 2018
Current and long-term debt |  |  |  |  |
Proceeds from issuance of debt |  | $ 36,000 | $ 445,234 | $ 148,209 | $ 438,000
Paycheck Protection Program Loan [Member] |  |  |  |  |
Current and long-term debt |  |  |  |  |
Proceeds from issuance of debt | $ 2,200 |  |  |  |
Maturity date |  |  |  | Apr. 16, 2022 |
Interest rate (as a percent) | 1.00% |  |  |  |
Maximum percentage allowed to be prepaid without written advance notice |  |  |  | 20.00% |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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