INVESTMENTS AND FAIR VALUE MEASUREMENTS (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - Fair Value, Recurring - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets, Fair Value Disclosure [Abstract]
Total assets	$ 865,597	$ 496,543
Liabilities, Fair Value Disclosure [Abstract]
Total liabilities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Cash and Cash Equivalents \| Cash
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	453,260	425,650
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Cash and Cash Equivalents \| Money market funds
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	412,337	70,893
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Cash and Cash Equivalents \| Corporate securities
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents		0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Available-for-Sale Securities \| Corporate securities
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Prepaid expenses and other current assets \| Foreign currency forward contracts
Assets, Fair Value Disclosure [Abstract]
Prepaid expenses and other current assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Accrued expenses and other current liabilities \| Foreign currency forward contracts
Liabilities, Fair Value Disclosure [Abstract]
Foreign currency derivatives	0	0
Significant Other Observable Inputs (Level 2)
Assets, Fair Value Disclosure [Abstract]
Total assets	20,447	45,631
Liabilities, Fair Value Disclosure [Abstract]
Total liabilities	4,014	1,531
Significant Other Observable Inputs (Level 2) \| Cash and Cash Equivalents \| Cash
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	0	0
Significant Other Observable Inputs (Level 2) \| Cash and Cash Equivalents \| Money market funds
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	0	0
Significant Other Observable Inputs (Level 2) \| Cash and Cash Equivalents \| Corporate securities
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents		17,450
Significant Other Observable Inputs (Level 2) \| Available-for-Sale Securities \| Corporate securities
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	6,702	27,440
Significant Other Observable Inputs (Level 2) \| Prepaid expenses and other current assets \| Foreign currency forward contracts
Assets, Fair Value Disclosure [Abstract]
Prepaid expenses and other current assets	13,745	741
Significant Other Observable Inputs (Level 2) \| Accrued expenses and other current liabilities \| Foreign currency forward contracts
Liabilities, Fair Value Disclosure [Abstract]
Foreign currency derivatives	4,014	1,531
Significant Unobservable Inputs (Level 3)
Assets, Fair Value Disclosure [Abstract]
Total assets	500	500
Liabilities, Fair Value Disclosure [Abstract]
Total liabilities	0	0
Significant Unobservable Inputs (Level 3) \| Cash and Cash Equivalents \| Cash
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	0	0
Significant Unobservable Inputs (Level 3) \| Cash and Cash Equivalents \| Money market funds
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	0	0
Significant Unobservable Inputs (Level 3) \| Cash and Cash Equivalents \| Corporate securities
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents		0
Significant Unobservable Inputs (Level 3) \| Available-for-Sale Securities \| Corporate securities
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	500	500
Significant Unobservable Inputs (Level 3) \| Prepaid expenses and other current assets \| Foreign currency forward contracts
Assets, Fair Value Disclosure [Abstract]
Prepaid expenses and other current assets	0	0
Significant Unobservable Inputs (Level 3) \| Accrued expenses and other current liabilities \| Foreign currency forward contracts
Liabilities, Fair Value Disclosure [Abstract]
Foreign currency derivatives	0	0
Estimate of Fair Value Measurement
Assets, Fair Value Disclosure [Abstract]
Total assets	886,544	542,674
Liabilities, Fair Value Disclosure [Abstract]
Total liabilities	4,014	1,531
Estimate of Fair Value Measurement \| Cash and Cash Equivalents \| Cash
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	453,260	425,650
Estimate of Fair Value Measurement \| Cash and Cash Equivalents \| Money market funds
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents	412,337	70,893
Estimate of Fair Value Measurement \| Cash and Cash Equivalents \| Corporate securities
Assets, Fair Value Disclosure [Abstract]
Cash and cash equivalents		17,450
Estimate of Fair Value Measurement \| Available-for-Sale Securities \| Corporate securities
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities	7,202	27,940
Estimate of Fair Value Measurement \| Prepaid expenses and other current assets \| Foreign currency forward contracts
Assets, Fair Value Disclosure [Abstract]
Prepaid expenses and other current assets	13,745	741
Estimate of Fair Value Measurement \| Accrued expenses and other current liabilities \| Foreign currency forward contracts
Liabilities, Fair Value Disclosure [Abstract]
Foreign currency derivatives	$ 4,014	$ 1,531

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

Fair value, before 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 elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 22
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313

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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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Fair value of financial and nonfinancial obligations.

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