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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) |  |  |  |
Balances | $ 126,280 | $ 111,200 | $ 119,194 | $ 101,813
Balances | 134,392 | 113,796 | 134,392 | 113,796
Accumulated Other Comprehensive Income (Loss) |  |  |  |
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) |  |  |  |
Balances | (12,444) | (9,555) | (10,531) | (8,518)
Unrealized loss on cash flow hedges | (100) | (88) | (1,660) | (713)
Amounts reclassified from AOCI | 170 | (17) | 313 | (90)
Foreign currency translation gain (loss) | 3,433 | (2,369) | 2,937 | (2,708)
Balances | (8,941) | (12,029) | (8,941) | (12,029)
Defined Benefit Plan Liability |  |  |  |
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) |  |  |  |
Balances | (1,628) | (1,006) | (1,628) | (1,006)
Balances | (1,628) | (1,006) | (1,628) | (1,006)
Cash Flow Hedges |  |  |  |
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) |  |  |  |
Balances | (2,228) | (341) | (363) | 566
Unrealized loss on cash flow hedges | (133) | (108) | (2,184) | (914)
Amounts reclassified from AOCI | 224 | (27) | 410 | (128)
Balances | (2,137) | (476) | (2,137) | (476)
Tax effect of Cash Flow Hedges |  |  |  |
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) |  |  |  |
Balances | 534 | 77 | 86 | (132)
Unrealized loss on cash flow hedges, Tax effect | 33 | 20 | 524 | 201
Amounts reclassified from AOCI, Tax effect | (54) | 10 | (97) | 38
Balances | 513 | 107 | 513 | 107
Foreign Currency Translation Adjustment |  |  |  |
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) |  |  |  |
Balances | (9,122) | (8,285) | (8,626) | (7,946)
Foreign currency translation gain (loss) | 3,433 | (2,369) | 2,937 | (2,708)
Balances | $ (5,689) | $ (10,654) | $ (5,689) | $ (10,654)

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