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LEASES - Reported under ASC 842 and ASC 840 (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 01, 2019 | Dec. 31, 2019 | Oct. 01, 2019 | Sep. 30, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Oct. 02, 2019 | Jan. 01, 2019
Future minimum lease payments for non-cancellable operating leases |  |  |  |  |  |  |  |
2020 |  | $ 1,022 |  |  |  |  |  |
2021 |  | 876 |  |  |  |  |  |
2022 |  | 574 |  |  |  |  |  |
2023 |  | 585 |  |  |  |  |  |
2024 |  | 345 |  |  |  |  |  |
Total operating lease payment |  | 3,402 |  |  |  |  |  |
Less: discount to present value |  | 232 |  |  |  |  |  |
Total operating lease liabilities |  | 3,170 |  |  |  |  |  |
Less: current operating lease liabilities | $ 1,337 | 923 | $ 1,337 |  |  |  | $ 913 | $ 2,103
Noncurrent operating lease liabilities | $ 2,438 | $ 2,247 | $ 2,438 |  |  |  | $ 2,482 | $ 3,444
Prior to the adoption of ASC 842, future obligations for non-cancellable operating leases |  |  |  |  |  |  |  |
2019 |  |  |  |  | $ 3,792 |  |  |
2020 |  |  |  |  | 2,350 |  |  |
2021 |  |  |  |  | 1,899 |  |  |
2022 |  |  |  |  | 968 |  |  |
2023 |  |  |  |  | 999 |  |  |
Thereafter |  |  |  |  | 599 |  |  |
Total operating lease payments |  |  |  |  | $ 10,607 |  |  |
Financial Designation, Predecessor and Successor [Fixed List] | Predecessor | Successor | Predecessor | Predecessor | Predecessor | Predecessor |  |

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- Definition Amount of lessee's undiscounted obligation for lease payments for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
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