Number Of Share Based Compensation Plans

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Number of years risk free interest rate

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The percentage of eligible share-based compensation awards that can be earned based on the reporting entity's targets, as defined in the terms of the award agreement.

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Period of time used to measure performance for share-based compensation awards.

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Share based compensation expense period

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The exercise price is the percent above the closing price on date of grant.

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The value of shares issued as part of share-based compensation arrangements.

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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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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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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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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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- 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

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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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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Compensation Plans - Additional Information (Details) $ in Millions					3 Months Ended
	Apr. 03, 2020 USD ($) shares	Jan. 03, 2020 USD ($) shares	Aug. 02, 2019 USD ($) shares	May 16, 2016 USD ($) shares	Mar. 31, 2020 USD ($) plan shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock-based compensation plans \| plan					3
Exercisable options at period end (in shares)					0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted (in shares)					2,997,052
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period for restricted stock units					36 months
Number of years risk free interest rate					3 years
Number of shares granted (in shares)					56,066
Restricted stock and restricted stock units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to equity awards \| $					$ 216.2
Weighted average period over which equity award expense expected to be recognized					3 years 3 months 18 days
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant requisite service period					5 years
Share based compensation option exercise price					10.00%
Unrecognized compensation cost related to equity awards \| $					$ 1.2
Weighted average period over which equity award expense expected to be recognized					2 years 10 months 24 days
Stock options \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of stock options					10 years
Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity award grants authorized (in shares)					8,200,000
Shares available for future issuance (in shares)					500,000
Leadership Grants Subsequent to 2016 \| Restricted stock units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage					150.00%
Average adjusted return on equity targets \| Leadership Grants Subsequent to 2016 \| Restricted stock units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage					75.00%
Average adjusted return on equity targets \| 2016 Leadership Grant \| Restricted stock units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage					50.00%
Total shareholder return relative to members of a predetermined peer group \| Leadership Grants Subsequent to 2016 \| Restricted stock units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage					75.00%
Total shareholder return \| 2016 Leadership Grant \| Restricted stock units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage					50.00%
Simmons & Company International \| 2016 Inducement Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of restricted stock granted \| $				$ 11.6
Number of shares granted (in shares)				286,776
Weeden & Co. \| 2019 Inducement Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of restricted stock granted \| $			$ 7.3
Number of shares granted (in shares)			97,752
Sandler O'Neill \| 2020 Inducement Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of restricted stock granted \| $		$ 96.9
Number of shares granted (in shares)		1,217,423
Sandler O'Neill \| 2020 Inducement Plan \| Restricted Stock \| 18 Month Vesting Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years					18 months
Sandler O'Neill \| 2020 Inducement Plan \| Restricted Stock \| Three Year Vesting Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years					3 years
Sandler O'Neill \| 2020 Inducement Plan \| Restricted Stock \| Five Year Vesting Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years					5 years
Sandler O'Neill \| 2020 Inducement Plan \| Restricted Stock \| Weighted Average
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years					3 years 8 months 12 days
Forecast \| The Valence Group \| 2020 Inducement Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of restricted stock granted \| $	$ 5.5
Number of shares granted (in shares)	114,000
Annual grants \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years					3 years
Annual grant expense period					1 year
Sign-on grants \| Restricted Stock \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant requisite service period					3 years
Sign-on grants \| Restricted Stock \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant requisite service period					5 years