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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Notional Amount and Fair Value (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Foreign currency exchange contracts | Maximum |  |
Derivative Instruments and Hedging Activities |  |
Term of derivative instrument | 3 months |
Not designated as hedging instruments | Accounts receivable, net | Receive EUR/pay USD |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Assets |  | $ 26,731
Fair Value, Assets |  | 246
Not designated as hedging instruments | Accounts receivable, net | Receive SGD/pay USD |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Assets | $ 18,713 |
Fair Value, Assets | 41 |
Not designated as hedging instruments | Accounts receivable, net | Receive RSD/pay USD |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Assets | 10,127 | 9,018
Fair Value, Assets | 28 | 59
Not designated as hedging instruments | Accounts receivable, net | Receive NOK/pay USD |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Assets |  | 2,122
Fair Value, Assets |  | 17
Not designated as hedging instruments | Accounts receivable, net | Receive USD/pay SGD |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Assets |  | 1,555
Fair Value, Assets |  | 7
Not designated as hedging instruments | Accrued liabilities | Receive EUR/pay USD |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Liabilities | 1,298,899 |
Fair Value, Liabilities | (1,768) |
Not designated as hedging instruments | Accrued liabilities | Receive NOK/pay USD |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Liabilities | 4,411 |
Fair Value, Liabilities | (18) |
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay GBP |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Liabilities | 35,256 | 38,406
Fair Value, Liabilities | (416) | (695)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay RUB |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Liabilities | 7,780 | 12,777
Fair Value, Liabilities | (40) | (55)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay AUD |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Liabilities | 8,508 | 12,819
Fair Value, Liabilities | (130) | (172)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay CNY |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Liabilities | 12,344 |
Fair Value, Liabilities | (50) |
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay COP |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Liabilities | 5,436 | 3,793
Fair Value, Liabilities | (93) | (18)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay ZAR |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Liabilities | 2,403 | 3,349
Fair Value, Liabilities | (106) | (32)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay DKK |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Liabilities | 3,151 | 1,283
Fair Value, Liabilities | (3) | (11)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay NZD |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Liabilities | 2,290 | 3,071
Fair Value, Liabilities | (13) | $ (33)
Not designated as hedging instruments | Accrued liabilities | Receive SEK/pay USD |  |
Derivative Instruments and Hedging Activities |  |
Notional amount, Liabilities | 2,275 |
Fair Value, Liabilities | $ (10) |

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