Stock-Based Compensation Plans (Details) $ / shares in Units, $ in Thousands	9 Months Ended
Sep. 30, 2023 USD ($) Type $ / shares shares	Sep. 30, 2022 USD ($)
Restricted and Performance Stock Grants [Abstract]
Number of types of restricted stock \| Type	2
Additional Disclosures [Abstract]
Compensation expense, gross \| $	$ 5,243	$ 6,327
Restricted Shares [Member] \| Minimum [Member]
Restricted and Performance Stock Grants [Abstract]
Expiration of vesting period	3 years
Restricted Shares [Member] \| Employees [Member]
Restricted and Performance Stock Grants [Abstract]
Estimated forfeitures	5.00%
Restricted Shares [Member] \| Executives [Member]
Restricted and Performance Stock Grants [Abstract]
Estimated forfeitures	0.00%
Restricted Shares [Member] \| Directors [Member]
Restricted and Performance Stock Grants [Abstract]
Estimated forfeitures	0.00%
Restricted Shares [Member] \| Age 60 [Member] \| Executives [Member]
Restricted and Performance Stock Grants [Abstract]
Vesting percentage	25.00%
Vesting period before reaching age limit	2 months
Restricted Shares [Member] \| Age 63 [Member] \| Executives [Member]
Restricted and Performance Stock Grants [Abstract]
Vesting percentage	25.00%
Vesting period before reaching age limit	2 months
Restricted Shares [Member] \| Age 65 [Member] \| Executives [Member]
Restricted and Performance Stock Grants [Abstract]
Vesting percentage	100.00%
Vesting period before reaching age limit	2 months
Performance-based Shares [Member]
Restricted and Performance Stock Grants [Abstract]
Measuring period for performance-based shares	3 years
Performance-based Shares [Member] \| Minimum [Member]
Restricted and Performance Stock Grants [Abstract]
Expiration of vesting period	3 years
Restricted and Performance-Based Shares [Member]
Restricted and performance-based stock, shares [Roll Forward]
Beginning of period (in shares)	880,829
Granted (in shares)	6,000
Vested (in shares)	(58,978)
Forfeited (in shares)	(5,200)
End of period (in shares)	822,651
Restricted and performance-based stock, weighted average grant date fair value per share [Roll Forward]
Beginning of period (in dollars per share) \| $ / shares	$ 31.79
Granted (in dollars per share) \| $ / shares	31.63
Vested (in dollars per share) \| $ / shares	32.49
Forfeited (in dollars per share) \| $ / shares	36.63
End of period (in dollars per share) \| $ / shares	$ 31.74
Additional Disclosures [Abstract]
Compensation expense, gross \| $	$ 4,900	5,700
Compensation expense, net of tax \| $	3,700	$ 4,200
Unamortized compensation expense \| $	$ 9,600
Restricted and Performance-Based Shares [Member] \| Employees [Member]
Additional Disclosures [Abstract]
Weighted average period of recognition for unrecognized compensation expense	3 years 9 months 14 days
Restricted and Performance-Based Shares [Member] \| Directors [Member]
Additional Disclosures [Abstract]
Weighted average period of recognition for unrecognized compensation expense	6 months 29 days
Restricted and Performance-Based Shares [Member] \| Executives and Directors [Member] \| Minimum [Member]
Restricted and Performance Stock Grants [Abstract]
Holding period for restricted and performance shares issued	1 year
Restricted and Performance-Based Shares [Member] \| Executives and Directors [Member] \| Maximum [Member]
Restricted and Performance Stock Grants [Abstract]
Holding period for restricted and performance shares issued	2 years
2016 Omnibus Incentive Plan [Member] \| Employees and Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Abstract]
Shares authorized for issuance (in shares)	2,050,000

The number of types of restricted stock granted to eligible employees.

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Represents the percentage of the forfeitures on share-based payment award during the period.

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Post vesting holding period that once the award vests the participant needs to hold the award for a given time period until they can exercise the award, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Represents the measuring period for performance-based shares, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The vesting period for shares granted within eligible age limit employee under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, after tax, of expense for 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (i)
-Publisher FASB
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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of noncash expense for share-based payment arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

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

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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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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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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- Definition

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

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

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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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