Share Based Compensation Arrangement by Share Based Payment Award, Percentage of Outstanding Stock Minimum

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- Definition

Share-based Payment Arrangement, Plan Modification, Expense Recognized

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of discretionary contributions made by an employer to a defined contribution plan.

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Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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Percentage employer matches of the employee's percentage contribution matched.

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Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

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- Definition

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 tax benefit from exercise of option under share-based payment arrangement.

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

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- Definition

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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- Definition

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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- 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.

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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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- 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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- Definition

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

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- Definition

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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- Definition

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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- Definition

Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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No definition available.

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- Definition

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

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Value, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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Stock-Based Compensation and Other Benefit Plans - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended			60 Months Ended
	Mar. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021	May 31, 2021	May 31, 2015	May 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)		0			0
Options exercised		0	0
Value of options exercised				$ 1,600,000
Proceeds from options exercised				1,300,000
Tax benefit from compensation expense		$ 0	$ 0	1,300,000
Tax benefits from exercise of stock options				300,000
Maximum annual contributions per employee (percent)		50.00%
Employer discretionary contribution amount		$ 2,200,000	$ 1,200,000	4,300,000
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance-based restricted stock units issued, at target (in shares)		210,367
Estimated fair value at date of grant (in dollars per share)		$ 3.28
Performance-based restricted stock units outstanding (in shares)		235,367	181,886		235,367
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Expiration period		10 years
Restricted Stock Units and Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit from compensation expense		$ 1,100,000	$ 400,000	1,900,000
Allocated share-based compensation expense		7,700,000	6,300,000	9,800,000
Restricted stock awards		$ 8,700,000			$ 8,700,000
Period for recognition		2 years
Fair value of shares vested		$ 5,300,000	1,900,000	7,200,000
Restricted Stock Units and Restricted Stock Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Restricted Stock Units and Restricted Stock Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years
Performance-based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance-based restricted stock units issued, at target (in shares)					0
Vesting period		3 years
Performance-based restricted stock units outstanding (in shares)		0			0
Allocated share-based compensation expense		$ 0	0	100,000
Restricted stock awards		$ 5,700,000	4,000,000		$ 5,700,000
The 2014 Director Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)						1,200,000		1,000,000
Shares available for grant (in shares)		146,527			146,527
The 2014 Director Plan \| Employees, non-directors \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance-based restricted stock units issued, at target (in shares)		210,367
Estimated fair value at date of grant (in dollars per share)		$ 3.28
The 2014 Director Plan \| Employees, non-directors \| Performance-based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of shares granted		$ 200,000
The 2015 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)						14,300,000	12,300,000
Shares available for grant (in shares)		1,673,140			1,673,140
The 2015 Plan \| Employees, non-directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan modification, expense recognized	$ 4,000,000
2021 Awards \| Performance-based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Allocated share-based compensation expense		$ 3,000,000	$ 2,600,000	$ 2,300,000
2021 Awards \| Time-based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense		$ 1,400,000
Range of payout of shares for each executive, minimum		0.00%
Range of payout of shares for each executive, maximum		200.00%
Participants Contributions Up to 3 Percent of Compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer matching contribution, percent of employees' gross pay		3.00%
Employer matching contribution, percent of match		100.00%
Participants Contributions from 3 Percent to 6 Percent of Compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer matching contribution, percent of match		50.00%
Participants Contributions from 3 Percent to 6 Percent of Compensation \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer matching contribution, percent of employees' gross pay		3.00%
Participants Contributions from 3 Percent to 6 Percent of Compensation \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer matching contribution, percent of employees' gross pay		6.00%