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LEASES (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Operating Leases |  |  |  |
Term of option to terminate |  | 1 year |  |
Components of Lease Expense |  |  |  |
Operating lease cost |  | $ 8,397 | $ 9,000 | $ 8,724
Variable lease cost |  | 50 | 53 | 18
Short-term lease cost | [1] | 148 | 369 | 240
Total lease cost |  | 8,595 | 9,422 | $ 8,982
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |
Operating cash outflows for operating leases |  | 8,203 | 8,478 |
Right-of-use assets obtained in exchange for lease obligations: |  |  |  |
Operating leases |  | 5,344 | 3,519 |
Operating leases |  |  |  |
Operating lease right-of-use assets |  | $ 31,754 | $ 34,908 |
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] |  | Property, Plant and Equipment, Net | Property, Plant and Equipment, Net |
Operating lease liabilities |  | $ 32,833 | $ 35,857 |
Operating Lease, Liability, Statement of Financial Position [Extensible List] |  | Operating lease liabilities | Operating lease liabilities |
Weighted average remaining lease term |  |  |  |
Operating leases |  | 5 years 4 months 24 days | 6 years 1 month 6 days |
Weighted average discount rate |  |  |  |
Operating leases |  | 2.62% | 2.82% |
Minimum |  |  |  |
Operating Leases |  |  |  |
Remaining term of lease |  | 1 year |  |
Term of option to extend |  | 1 year |  |
Maximum |  |  |  |
Operating Leases |  |  |  |
Remaining term of lease |  | 13 years |  |
Term of option to extend |  | 40 years |  |
[1] | Short-term lease cost includes the cost of leases with terms of twelve months or less, excluding leases with terms of one month or less.

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