Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Publisher FASB
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-SubTopic 10
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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

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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.

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No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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-Publisher FASB
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- Definition

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

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No definition available.

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

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Shareholders' Equity - Plan Information (Details) - shares		12 Months Ended
	May 14, 2010	Dec. 31, 2020	Dec. 31, 2019
Stock options
Stock-Based Compensation
Options outstanding (in shares)		1,856,176	1,988,696
Minimum \| Stock options
Stock-Based Compensation
Vesting period		3 years
Period of service restrictions		3 years
Minimum \| Restricted stock units
Stock-Based Compensation
Period of service restrictions		1 year
Minimum \| Restricted stock awards
Stock-Based Compensation
Period of service restrictions		1 year
Maximum \| Stock options
Stock-Based Compensation
Vesting period		4 years
Period of service restrictions		4 years
Maximum \| Restricted stock units
Stock-Based Compensation
Period of service restrictions		4 years
Maximum \| Restricted stock awards
Stock-Based Compensation
Period of service restrictions		4 years
2010 Plan
Stock-Based Compensation
Common stock authorized for issuance (in shares)	8,000,000
2010 Plan \| Stock options
Stock-Based Compensation
Options granted (in shares)		5,545,090
Options outstanding (in shares)		893,045
2010 Plan \| Restricted stock awards
Stock-Based Compensation
Stock units awarded (in shares)		570,011
2010 Plan \| Minimum
Stock-Based Compensation
Vesting period	3 years
2010 Plan \| Maximum
Stock-Based Compensation
Vesting period	5 years
2016 Incentive Compensation Plan
Stock-Based Compensation
Common stock authorized for issuance (in shares)		9,500,000
2016 Incentive Compensation Plan \| Stock options
Stock-Based Compensation
Options granted (in shares)		1,406,191
Options outstanding (in shares)		963,131
2016 Incentive Compensation Plan \| Restricted stock units
Stock-Based Compensation
Stock units awarded (in shares)		1,882,358
Stock units awarded outstanding (in shares)		805,052
2016 Incentive Compensation Plan \| Minimum
Stock-Based Compensation
Vesting period		1 year
2016 Incentive Compensation Plan \| Maximum
Stock-Based Compensation
Vesting period		4 years