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Common Stock, Compensation Plans and Other (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Summary of Stock Option Transactions under Plan

The table below summarized the stock option transactions under the Plan at December 31, 2023, 2022 and 2021 and changes during the years then ended:

			2023												2022												2021
			Shares (000)						Weighted- average Exercisable Price						Shares (000)						Weighted- average Exercisable Price						Shares (000)						Weighted- average Exercisable Price
Outstanding, beginning of year			2,971						$	20.45					3,015						$	20.06					3,254						$	19.77
Granted			25						22.63						183						21.13						15						21.68
Forfeited/Expired			(10)						23.38						(96)						21.89						(57)						22.44
Exercised			(210)						14.01						(131)						11.30						(197)						14.78
Outstanding, end of year			2,776						20.95						2,971						20.45						3,015						20.06
Exercisable, end of year			1,940						20.05						1,837						18.89						1,543						17.46

Summary of Stock Options on Valuation Assumptions

The assumptions used in determining the fair value of 2023, 2022 and 2021 stock option grants were as follows:

			For the Years Ended December 31,
			2023						2022			2021
Expected dividend yield			2.98		%				3.14		%				2.59		%
Expected stock price volatility			27.97		%				31.18		%				70.13		%
Risk-free interest rate			3.37		%				2.82		%				0.75		%
Expected life of options			6.5 years						6.5 years						6.5 years

Summary of Currently Outstanding and Exercisable Options

The following is a summary of currently outstanding and exercisable options at December 31, 2023:

Options Outstanding																								Options Exercisable
Exercise Prices						Options Outstanding Shares (000)						Weighted- Average Remaining Contractual Life (in years)						Weighted- Average Exercise Price						Options Exercisable Shares (000)						Weighted- Average Exercise Price
$14.00 to $15.99						100						1.04						$	14.71					100						$	14.71
$16.00 to $17.99						172						0.91						16.92						172						16.92
$18.00 to $19.99						836						1.79						18.48						829						18.48
$20.00 to $21.99						268						4.72						20.87						191						20.98
$22.00 to $23.99						1,309						4.65						23.22						577						23.14
$24.00 to $25.99						91						4.40						25.59						71						25.95
						2,776																		1,940

Summary of Company's Restricted Stock Issued and Outstanding

The table below summarizes the activity for the Company’s restricted stock issued and outstanding at December 31, 2023, 2022 and 2021 and changes during the years then ended:

			2023						2022						2021
			(In thousands)
Beginning of year			1,381						1,231						1,371
Issued			261						409						216
Vested			(152)						(178)						(320)
Forfeited			(61)						(81)						(36)
End of year			1,429						1,381						1,231
Amount of expense for twelve months ended			$	8,016					$	7,646					$	7,112

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Tabular disclosure of the changes in outstanding nonvested restricted stock units.

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Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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