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ACCUMULATED OTHER COMPREHENSIVE LOSS (Schedule of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Balance in AOCL Beginning of Year | $ 1,375,796 | $ 962,306 | $ 839,667
Other comprehensive loss, net | (19,567) |  |
Less: Amounts reclassified from accumulated other comprehensive income, net | 11,392 |  |
Total other comprehensive income (loss), net of tax | (30,959) | (21,636) | 33,347
Balance in AOCL End of Year | 1,416,736 | 1,375,796 | 962,306
Gains and Losses on Derivatives |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Balance in AOCL Beginning of Year | (4,813) |  |
Other comprehensive loss, net | (10,420) |  |
Less: Amounts reclassified from accumulated other comprehensive income, net | 11,392 |  |
Total other comprehensive income (loss), net of tax | (21,812) |  |
Balance in AOCL End of Year | (26,625) | (4,813) |
Defined Benefit Pension Items |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Balance in AOCL Beginning of Year | (736) |  |
Other comprehensive loss, net | (8,973) |  |
Less: Amounts reclassified from accumulated other comprehensive income, net | 0 |  |
Total other comprehensive income (loss), net of tax | (8,973) |  |
Balance in AOCL End of Year | (9,709) | (736) |
Foreign Currency Items |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Balance in AOCL Beginning of Year | (39,894) |  |
Other comprehensive loss, net | (174) |  |
Less: Amounts reclassified from accumulated other comprehensive income, net | 0 |  |
Total other comprehensive income (loss), net of tax | (174) |  |
Balance in AOCL End of Year | (40,068) | (39,894) |
Total |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Balance in AOCL Beginning of Year | (45,443) | (23,807) | (57,154)
Total other comprehensive income (loss), net of tax | (30,959) | (21,636) | 33,347
Balance in AOCL End of Year | $ (76,402) | $ (45,443) | $ (23,807)

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