Nominal or face amount used to calculate payments on the derivative asset.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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-Publisher FASB
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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Derivatives (Details) - USD ($) $ in Thousands	12 Months Ended
Derivatives (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Net gain on derivatives	$ 35,900	$ 100	$ 2,500
Foreign Exchange Forward
Derivatives, Fair Value [Line Items]
Notional Value	637,778	465,719
Foreign Exchange Forward \| Level 2
Derivatives, Fair Value [Line Items]
Fair value	1,462	2,311
Foreign Exchange Forward \| Japanese Yen
Derivatives, Fair Value [Line Items]
Notional Value	465,192	391,643
Foreign Exchange Forward \| Japanese Yen \| Other Current Assets \| Level 2
Derivatives, Fair Value [Line Items]
Fair value	1,279	2,225
Foreign Exchange Forward \| Korean Won
Derivatives, Fair Value [Line Items]
Notional Value	161,612	74,076
Foreign Exchange Forward \| Korean Won \| Other Current Assets \| Level 2
Derivatives, Fair Value [Line Items]
Fair value	190	86
Foreign Exchange Forward \| Philippines, Pesos
Derivatives, Fair Value [Line Items]
Notional Value	10,974	0
Foreign Exchange Forward \| Philippines, Pesos \| Level 2
Derivatives, Fair Value [Line Items]
Fair value		$ 0
Foreign Exchange Forward \| Philippines, Pesos \| Accounts Payable and Accrued Liabilities \| Level 2
Derivatives, Fair Value [Line Items]
Fair value	$ (7)