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LEASES - Maturities of lease liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
LEASES |  |  |
Year 1 | $ 20,764 | $ 18,048 |
Year 2 | 15,881 | 16,022 |
Year 3 | 12,949 | 11,755 |
Year 4 | 9,901 | 9,327 |
Year 5 | 7,134 | 7,807 |
Thereafter | 79,843 | 80,637 |
Total lease payments | 146,472 | 143,596 |
Less imputed interest | (57,512) | (57,133) |
Total | $ 88,960 | $ 86,463 |
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] | Lease Liability, Current, Lease Liability, Noncurrent | Lease Liability, Current, Lease Liability, Noncurrent |
Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] |  |  |
Year 1 | $ 1,649 | $ 2,030 |
Year 2 | 847 | 1,488 |
Year 3 | 825 | 601 |
Year 4 | 632 | 534 |
Year 5 | 516 | 505 |
Thereafter | 1,630 | 2,145 |
Total lease payments | 6,099 | 7,303 |
Less imputed interest | (1,402) | (1,662) |
Total | $ 4,697 | $ 5,641 |
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] | Lease Liability, Current, Lease Liability, Noncurrent | Lease Liability, Current, Lease Liability, Noncurrent |
Lease income | $ 8,372 | $ 7,777 | $ 6,253
Maturities of future undiscounted lease payments |  |  |
2025 | 7,197 |  |
2026 | 6,970 |  |
2027 | 5,645 |  |
2028 | 5,040 |  |
2029 | 4,396 |  |
Thereafter | 4,204 |  |
Total future lease payments | 33,452 |  |
Network asset |  |  |
Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] |  |  |
Lease income | $ 8,400 | $ 7,800 | $ 6,300
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] | Revenues | Revenues | Revenues

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