Amount, after tax, of expense for award under share-based payment arrangement.

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- Definition

The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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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).

+ References

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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.

+ References

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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.

+ References

No definition available.

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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

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

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- Definition

An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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- Definition

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

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Share-Based Compensation (Details) - USD ($) shares in Thousands			3 Months Ended		9 Months Ended
	May 18, 2022	Feb. 15, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining shares available for issuance (in shares)			9,100		9,100
Increase in number of shares authorized for issuance (in shares)	9,000
Cliff Vest
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation awards, vesting period					3 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted during period (in shares)					1,000
Share-based compensation awards, vesting period					3 years
Nonvested shares outstanding (in shares)			1,900		1,900
Unrecognized compensation expense			$ 20,100,000		$ 20,100,000
Share-based compensation expense			$ 2,900,000	$ 800,000	$ 8,300,000	$ 2,200,000
Restricted Stock \| Second Anniversary of Grant Date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage					50.00%
Restricted Stock \| Third Anniversary of Grant Date
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage					50.00%
Restricted Stock \| First Midwest
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share converted (in shares)		900
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted during period (in shares)					1,200
Nonvested shares outstanding (in shares)			2,100		2,100
Unrecognized compensation expense			$ 18,200,000		$ 18,200,000
Share-based compensation expense			$ 2,800,000	$ 700,000	$ 8,200,000	$ 2,000,000
Restricted Stock Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation awards, vesting period					24 months
Restricted Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation awards, vesting period					36 months
Restricted Stock Units \| First Midwest
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share converted (in shares)		700
Stock Options \| Old National Bancorp
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental expense associated with conversion of stock appreciation rights					$ 0
Stock Appreciation Rights (SARs) \| Old National Bancorp
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested shares outstanding (in shares)			8		8