Deferred Compensation Arrangement With Individual, Shares Purchased Through Payroll Deductions, Period

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- Definition

The number of active incentive compensation plans.

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- Definition

Percentage of share of non-vested stock considered as call-option.

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- Definition

Amount of commitment made to pay deferred cash remuneration.

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- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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- Definition

Amount of distribution made to individual in accordance with deferred compensation arrangement.

+ References

No definition available.

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- Definition

The total fair value of shares issued during the period under a deferred compensation arrangement.

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- Definition

The maximum number of shares authorized for issuance under the deferred compensation arrangement as of the balance sheet date.

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- Definition

Amount of cost for defined contribution plan.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
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- Definition

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

+ References

No definition available.

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- Definition

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

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- Definition

Amount of cost not yet recognized for nonvested award 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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- Definition

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

Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

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

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- Definition

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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No definition available.

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- Definition

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

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-Publisher FASB
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- Definition

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

+ References

No definition available.

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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

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

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- Definition

Amount of cost expensed and capitalized for award under share-based payment arrangement.

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Employee Benefit Plans - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended		12 Months Ended
	May 15, 2019	Jan. 31, 2021	Jan. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of active incentive plans				1
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized for issuance (in shares)	1,500,000
Period common stock may be purchased through payroll deductions				4 months
Percentage of share of non-vested stock considered as call option				85.00%
Purchase limit per employee (in shares)				260
Shares available for issuance (in shares)				1,800,000
2005 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized for issuance (in shares)	7,000,000.0
Vesting period				3 years
Award vesting percentage				33.00%
Shares authorized for issuance (in shares)				17,300,000
Shares available for issuance (in shares)				6,800,000
2005 Incentive Plan \| Maximum Shares as Incentive Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance (in shares)				2,000,000.0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)				667,752	846,835	614,286
Granted (in dollars per share)				$ 7.06	$ 6.02	$ 7.46
Share-based compensation				$ 4.2	$ 6.2	$ 6.0
Future share-based compensation				$ 4.4
Weighted average vesting period (in years)				1 year 2 months 12 days
Share-based payment awards vested				631,498	993,361	823,310
Fair value of awards vested				$ 5.4	$ 6.5	$ 6.4
RSUs \| January 2021 RSU Grant \| Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		452,381
Granted (in dollars per share)		$ 4.20
Total market value of shares granted		$ 1.9
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Award vesting percentage				100.00%
PSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage				200.00%
PSUs \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage				0.00%
Equity PSU Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			200.00%
Granted (in shares)				369,938	688,540	449,271
Granted (in dollars per share)				$ 13.15	$ 7.60	$ 10.44
Share-based compensation				$ 4.0	$ 5.1	$ 3.8
Future share-based compensation				$ 4.6
Weighted average vesting period (in years)				1 year
Share-based payment awards vested			589,335	589,335	0	0
Equity PSU Awards \| Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment awards vested			1,178,670
Fair value of awards vested			$ 11.4
Equity PSU Awards \| Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		200.00%
Share-based payment awards vested		368,038
Equity PSU Awards \| Subsequent Event \| Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment awards vested		736,075
Fair value of awards vested		$ 3.1
Equity PSU Awards \| January 2021 PSU Grant \| Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		452,381
Granted (in dollars per share)		$ 5.33
Total market value of shares granted		$ 2.4
Liability PSU Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation						$ 0.9
Cash paid to settle share-based award liability					$ 11.1	0.9
Fixed Value Cash Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Long-term incentive cash awards granted				$ 4.7	4.6	5.2
Compensation expense				$ 4.4	3.2	$ 1.7
Fixed Value Cash Awards \| Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long-term incentive cash awards granted		$ 3.4
401(k) Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employer matching contribution (as a percent)				50.00%
Employer matching contribution percent of participant' salary (up to)				5.00%
Plan cost recognized				$ 1.6	$ 1.0