Equity And Stock Based Compensation [Line Items]

No definition available.

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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

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

+ References

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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
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

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

+ References

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- Definition

Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

+ References

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- Definition

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

+ References

No definition available.

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Weighted average remaining contractual term for fully vested and expected to vest exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(2)
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Stock-Based Compensation And Stock Repurchases (Summary Of Stock Options Outstanding And Exercisable) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	9 Months Ended		12 Months Ended
	Mar. 10, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Equity And Stock-Based Compensation [Line Items]
Number of Stock Options, Granted	287,163	219,408	0	219,408
Weighted Average Exercise Price of Options Outstanding, Granted				$ 16.12
Class A [Member]
Equity And Stock-Based Compensation [Line Items]
Number of Stock Options, Beginning balance			711,377	586,469	586,469
Number of Stock Options, Granted					219,408
Number of Stock Options, Exercised					(69,500)
Number of Stock Options, Forfeited			(36,701)		(25,000)
Number of Stock Options Outstanding, Ending balance			674,676		711,377	586,469
Weighted Average Exercise Price of Options Outstanding, Beginning price			$ 14.74	$ 14.01	$ 14.01
Weighted Average Exercise Price of Options Outstanding, Granted					16.12
Weighted Average Exercise Price of Options Outstanding, Exercised					13.42
Weighted Average Exercise Price of Options Outstanding, Forfeited			14.74		13.42
Weighted Average Exercise Price of Options Outstanding, Ending price			$ 14.78		$ 14.74	$ 14.01
Weighted Average Remaining Years of Contractual Life			2 years 21 days		2 years 9 months 14 days	2 years 10 months 17 days
Aggregate Intrinsic Value, Beginning balance			$ 136,350	$ 1,530,528	$ 1,530,528
Aggregate Intrinsic Value, Exercised					185,175
Aggregate Intrinsic Value, Ending balance					$ 136,350	$ 1,530,528