The highest dollar amount from their salary that an employee is permitted to utilize with respect to the plan.

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Share-Based Compensation Arrangements By Share-Based Payment Award, Performance Shares Payout Rate

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The maximum percentage that can be achieved under the predetermined performance thresholds for the performance shares.

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The minimum percentage that can be achieved under the predetermined performance thresholds for the performance shares.

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Contractual term for options outstanding and currently exercisable, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Estimated period over which awards are earned, if at all, based upon the achievement of performance goals as determined by the company 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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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 tax benefit for recognition of expense of award under share-based payment arrangement.

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Amount of noncash expense for share-based payment arrangement.

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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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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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Discount rate from fair value on offering date that participants pay for shares.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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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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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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The highest quantity of shares an employee can purchase under the plan per period.

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

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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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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Percentage of vesting of award under share-based payment arrangement.

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

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Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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Stock-Based Compensation Plans - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jun. 09, 2020	Dec. 31, 2005
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 27,242,000	$ 29,602,000	$ 36,763,000
Unrecognized compensation costs, weighted average recognition periods	1 year 9 months 18 days
Stock-based compensation expense, tax benefits	$ 3,900,000	5,400,000	5,900,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of stock options exercised	$ 11,400,000	19,500,000	16,000,000
Stock Options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of award	1 year
Stock Options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of award	10 years
LTIP Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 400,000
Stock based compensation awards, award payout range, maximum	200.00%
Number of shares vested (in shares)	10,457
Shares withheld to pay employees' portion of minimum payroll withholding taxes (in shares)	4,527
LTIP Performance Shares \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period	1 year
LTIP Performance Shares \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period	3 years
Total Shareholder Return Awards (TSRs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period	3 years
Stock based compensation awards, award payout range, minimum	0.00%
Stock based compensation awards, award payout range, maximum	200.00%
Number of shares vested (in shares)	782,588
Shares withheld to pay employees' portion of minimum payroll withholding taxes (in shares)	205,373
Performance shares payout rate	200.00%
Unrecognized compensation costs	$ 17,300,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares vested (in shares)	522,618
Shares withheld to pay employees' portion of minimum payroll withholding taxes (in shares)	155,031
Requisite service period	3 years
Award vesting rights, incremental vesting percentage on anniversary of grant date	33.00%
Unrecognized compensation costs	$ 20,100,000
Restricted Stock Units (RSUs) \| Board Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
2017 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares of common stock reserved for issuance (in shares)	3,000,000
Purchase of common stock under the plan, employee annual base compensation, amount	$ 25,000
Purchase of common stock under the plan, employee annual base compensation, percentage	10.00%
Price of common stock purchased under ESPP, percentage	85.00%
Discount offered pursuant to ESPP, percentage	15.00%
Stock-based compensation expense	$ 600,000	$ 700,000	$ 600,000
2020 Equity and Incentive Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)				6,658,754
2016 Equity and Performance Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance (in shares)	8,000,000
2005 Equity and Performance Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of common stock reserved for issuance (in shares)					23,250,000