Represents the number of votes to which the holders of common stock are entitled for each share held.

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Represents the number of installments in which the awards would generally vest starting from the first anniversary of the date of grant.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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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).

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The weighted average fair value at grant date for nonvested equity-based awards issued 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).

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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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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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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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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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Purchase price of common stock expressed as a percentage of its fair value.

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No definition available.

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Share-Based Payments - Narrative (Details)	12 Months Ended
Share-Based Payments - Narrative (Details)	Dec. 31, 2021 USD ($) vote installment $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares
Share-Based Compensation
Number of votes to which holders of common shares are entitled for each share held \| vote	1
Maximum number of shares of common stock provided for issuance (in shares) \| shares	2,000,000
Contractual term (in years)	10 years	10 years
Total fair value of the underlying common stock related to shares that vested	$ 625,100	$ 0
Stock Option
Share-Based Compensation
Total unrecognized compensation expense	$ 23,800,000
Weighted-average period over which total unrecognized compensation expense is expected to be recognized (in years)	2 years 6 months 14 days
Stock option and Stock Appreciation Rights
Share-Based Compensation
Fair value	$ 41,530,000	$ 29,877,000	$ 27,716,000
Weighted average fair value, grant date, options (in dollars per share) \| $ / shares	$ 16.25	$ 13.44	$ 21.50
Aggregate intrinsic value of shares exercised	$ 2,800,000	$ 2,300,000	$ 2,400,000
Proceeds from stock options exercised	4,900,000	2,300,000	1,500,000
Total fair value of the underlying common stock related to shares that vested	$ 13,900,000	$ 14,100,000	10,800,000
Granted options (in shares) \| shares	1,055,525	1,370,225
RSUs
Share-Based Compensation
Vesting period (in years)	1 year
Total unrecognized compensation expense	$ 100,000
Weighted-average period over which total unrecognized compensation expense is expected to be recognized (in years)	1 month 6 days
Granted (in shares) \| shares	21,110	26,055
Weighted average fair value, grant date, (in dollars per share) \| $ / shares	$ 29.61	$ 23.99
Performance-Based Awards
Share-Based Compensation
Equity instruments other than options, vested in period, fair value	$ 1,200,000	$ 700,000	0
Fair value	0	$ 100,000	$ 0
Total unrecognized compensation expense	$ 700,000
Weighted-average period over which total unrecognized compensation expense is expected to be recognized (in years)	2 months 12 days
Total fair value of the underlying common stock related to shares that vested	$ 1,200,000
Granted (in shares) \| shares	115,000	46,875
Weighted average fair value, grant date, (in dollars per share) \| $ / shares	$ 29.55	$ 22.04
Market Based Awards
Share-Based Compensation
Weighted-average period over which total unrecognized compensation expense is expected to be recognized (in years)	10 months 24 days
2012 Plan
Share-Based Compensation
Maximum number of shares of common stock provided for issuance (in shares) \| shares	2,951,859
2012 Plan \| Maximum
Share-Based Compensation
Maximum number of shares of common stock provided for issuance (in shares) \| shares	4,951,859
2012 Plan \| Stock Option
Share-Based Compensation
Number of annual installments in which the awards would generally vest starting on the first anniversary of the date of grant \| installment	4
2012 Plan \| Stock Option \| Employees, Consultants and Advisors
Share-Based Compensation
Contractual term (in years)	10 years
2012 Plan \| Stock Option \| Directors
Share-Based Compensation
Vesting period (in years)	1 year
Employee Stock Purchase Plan
Share-Based Compensation
Maximum number of shares of common stock provided for issuance (in shares) \| shares	1,700,000
Purchase price percentage	85.00%