Market value of shares grants per year.

No definition available.

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- Definition

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 cost to be recognized for option under share-based payment arrangement.

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Amount of noncash expense for 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

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

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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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Stock-Based Compensation - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted in period (in shares)			0
Total intrinsic or aggregate value of options exercise price	$ 187,000	$ 2,700,000	$ 4,200,000	$ 4,500,000
Total unrecognized compensation cost related to nonvested stock options granted	206,000		206,000
Stock-based compensation			$ 3,903,000	4,534,000
Stock Option Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to nonvested stock options/ RSA granted, weighted-average period			1 year 10 months 24 days
Stock-based compensation	111,000	93,000	$ 257,000	147,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost related to nonvested stock options granted	15,400,000		$ 15,400,000
Unrecognized compensation cost related to nonvested stock options/ RSA granted, weighted-average period			2 years 10 months 24 days
Stock-based compensation	1,600,000	1,700,000	$ 3,200,000	4,000,000.0
Granted (in shares)			53,329
Total grant-date fair value	1,700,000	1,800,000	$ 4,500,000	4,200,000
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted in period (in shares)			0
Stock-based compensation	$ 0	2,000	$ 0	$ 4,000
2018 Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available to be granted (in shares)	692,161		692,161
Stock options granted in period (in shares)			0	0
Total intrinsic or aggregate value of options exercise price			$ 3,619,000
2018 Omnibus Incentive Plan \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			53,329
2018 Omnibus Incentive Plan \| Restricted Stock \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Market value of shares grants per year			$ 85,000
2018 Omnibus Incentive Plan \| Restricted Stock \| Board Chair
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Market value of shares grants per year			125,000
2018 Omnibus Incentive Plan \| Restricted Stock \| Committee Chairs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Market value of shares grants per year			15,000
2018 Omnibus Incentive Plan \| Restricted Stock \| Non-Financial Risk and Compensation Committee Chair
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Market value of shares grants per year			12,500
2018 Omnibus Incentive Plan \| Restricted Stock \| Asset Liability & Investment, Credit and Nominating & Governance Chair
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Market value of shares grants per year			$ 10,000
Directors Stock Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to nonvested stock options/ RSA granted, weighted-average period			10 months 24 days
Directors Stock Compensation Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 230,000	$ 200,000	$ 447,000	$ 380,000
Granted (in shares)			13,814
Directors Stock Compensation Plan \| Restricted Stock \| Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost related to nonvested stock options granted	$ 887,000		$ 887,000
Maximum \| 2018 Omnibus Incentive Plan \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			4 years