Schedule of Stock Option Activity (Details) - Stock Options [Member] shares in Thousands	9 Months Ended
Sep. 30, 2021 shares
Option Indexed to Issuer's Equity [Line Items]
Outstanding at January 1, 2021	22,551
Granted	4,796
Exercised	(1,063)
Forfeited	(2,701)
Cancelled
Expired	(1,341)
Outstanding at September 30, 2021	22,242

Share Based Compensation Arrangement by Share Based Payment Award Options Cancelled in Period.

No definition available.

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- Definition

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.

+ References

No definition available.

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- Definition

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

+ References

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- Definition

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.

+ References

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 718
-SubTopic 10
-Section 50
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- Definition

Number of share options (or share units) exercised during the current period.

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