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SHAREHOLDERS' EQUITY (Schedule of Stock Option Activity) (Details) - Employee Stock Option - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning balance (in shares)	1,109,436,000
Granted (in shares)	271,841,000
Exercised (in shares)	340,183,000
Cancelled (in shares)	6,286,000
Forfeited (in shares)	46,434,000
Ending balance (in shares)	988,374,000	1,109,436,000
Exercisable (in shares)	361,923,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Beginning balance (in usd per share)	$ 22,160
Granted (in usd per share)	25,640
Exercised (in usd per share)	25,590
Cancelled (in usd per share)	65,170
Forfeited (in usd per share)	4,530
Ending balance (in usd per share)	22,490	$ 22,160
Exercisable (in usd per share)	$ 45,880
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted- average remaining contractual term (in years)	4 years 3 months 3 days	4 years 4 months 6 days
Exercisable	3 years 1 month 20 days
Aggregate intrinsic value
Intrinsic value, outstanding	$ 258,014	$ 147,553
Intrinsic value, exercisable	$ 86,013

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Share Based Compensation Arrangement By Share Based Payment Award Options Aggregate Intrinsic Value [Abstract]

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Net number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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