Stock Compensation Plans and Other Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement, Noncash Expense [Abstract]

A summary of the Plans’ stock option activity for the years ended December 31, 2023, 2022 and 2021 is as follows:


Stock Options	Common Shares	Weighted Average Strike Price		Remaining Contractual Term(1)	Intrinsic Value(2) ($000)
Outstanding at January 1, 2021	520,663	$	42.47


Exercised	(326,626)	42.97
Forfeited or canceled	(590)	46.86
Outstanding at December 31, 2021	193,447	$	41.62	1.4	$	9,518
Exercisable at December 31, 2021	191,898	$	41.57	1.3	$	9,451
Outstanding at January 1, 2022	193,447	$	41.62


Exercised	(123,924)	41.89
Forfeited or canceled	(1,430)	40.87
Outstanding at December 31, 2022	68,093	$	41.14	1.1	$	2,954
Exercisable at December 31, 2022	68,093	$	41.14	1.1	$	2,954
Outstanding at January 1, 2023	68,093	$	41.14


Exercised	(54,993)	40.75
Forfeited or canceled	—	—
Outstanding at December 31, 2023	13,100	$	42.76	4.2	$	655
Exercisable at December 31, 2023	13,100	$	42.76	4.2	$	655
Vested or expected to vest at December 31, 2023	13,100	$	42.76	4.2	$	655

(1)Represents the weighted average contractual remaining life in years.

(2)Aggregate intrinsic value represents the total pretax intrinsic value (i.e., the difference between the Company’s stock price at year end and the option exercise price, multiplied by the number of shares) that would have been received by the option holders if they had exercised their options on the last day of the year. Options with exercise prices above the year end stock price are excluded from the calculation of intrinsic value. The intrinsic value will change based on the fair market value of the Company’s stock.

Schedule of Plans' Restricted and Performance Share Award Activity

A summary of the Plans’ restricted share activity for the years ended December 31, 2023, 2022 and 2021 is as follows:


	2023			2022			2021
Restricted Shares	Common Shares	Weighted Average Grant-Date Fair Value		Common Shares	Weighted Average Grant-Date Fair Value		Common Shares	Weighted Average Grant-Date Fair Value
Outstanding at January 1	610,155	$	73.21	476,813	$	61.33	234,794	$	59.02
Granted	270,855	88.06		225,680	95.93		276,311	63.96
Vested and issued	(121,534)	65.90		(68,541)	64.49		(19,673)	68.92
Forfeited or canceled	(13,353)	83.68		(23,797)	75.84		(14,619)	63.66
Outstanding at end of year	746,123	$	79.60	610,155	$	73.21	476,813	$	61.33
Vested, but deferred, at year end	98,919	$	53.58	96,920	$	53.08	95,465	$	52.52

A summary of the Plans’ performance-based stock award activity, based on the target level of the awards, for the years ended December 31, 2023, 2022 and 2021 is as follows:


	2023			2022			2021
Performance Shares	Common Shares	Weighted Average Grant-Date Fair Value		Common Shares	Weighted Average Grant-Date Fair Value		Common Shares	Weighted Average Grant-Date Fair Value
Outstanding at January 1	545,379	$	70.30	557,255	$	62.94	482,608	$	71.15
Granted	189,355	92.36		160,598	97.14		208,851	58.99
Added by performance factor at vesting	23,925	62.82		—	—		—	—
Vested and issued	(186,344)	62.67		—	—		—	—
Forfeited or canceled	(19,289)	81.84		(172,474)	71.52		(134,204)	86.30
Outstanding at end of year	553,026	$	79.69	545,379	$	70.30	557,255	$	62.94
Vested, but deferred, at year end	29,020	$	45.88	35,696	$	44.38	35,160	$	43.69