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LEASES - Summary of Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Oct. 01, 2019
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Operating Leases: |  |
Operating right-of-use assets | $ 154,955 | $ 163,552
Lease Liabilities: |  |
Current portion of operating lease liabilities | 29,018 |
Long-term operating lease liabilities | 131,650 |
Total operating lease liabilities | 160,668 | $ 163,676
Finance Leases: |  |
Property, plant and equipment, net | $ 13,318 |
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | us-gaap:PropertyPlantAndEquipmentNet |
Lease Liabilities: |  |
Lease liabilities, notes payable and current portion of long-term debt | $ 3,427 |
Lease liabilities, long-term debt, net | 9,725 |
Total financing lease liabilities | $ 13,152 |
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] | us-gaap:LongTermDebtCurrent |
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | us-gaap:LongTermDebtNoncurrent |
Accumulated depreciation | $ 1,464 |

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