Stock Compensation Plans and Other Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement, Noncash Expense [Abstract]

A summary of the Plans’ stock option activity for the years ended December 31, 2022, 2021 and 2020 is as follows:


Stock Options	Common Shares	Weighted Average Strike Price		Remaining Contractual Term(1)	Intrinsic Value(2) ($000)
Outstanding at January 1, 2020	755,332	$	42.43


Exercised	(229,061)	42.29
Forfeited or canceled	(5,608)	44.34
Outstanding at December 31, 2020	520,663	$	42.47	1.9	$	9,694
Exercisable at December 31, 2020	512,762	$	42.46	1.8	$	9,555
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
Vested or expected to vest at December 31, 2022	68,093	$	41.14	1.1	$	2,954

(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.

Summary of Plans' Restricted Share Award Activity

A summary of the Plans’ restricted share activity for the years ended December 31, 2022, 2021 and 2020 is as follows:


	2022			2021			2020
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	476,813	$	61.33	234,794	$	59.02	144,328	$	60.37
Granted	225,680	95.93		276,311	63.96		117,571	60.85
Vested and issued	(68,541)	64.49		(19,673)	68.92		(20,441)	74.42
Forfeited or canceled	(23,797)	75.84		(14,619)	63.66		(6,664)	73.54
Outstanding at end of year	610,155	$	73.21	476,813	$	61.33	234,794	$	59.02
Vested, but deferred, at year end	96,920	$	53.08	95,465	$	52.52	93,969	$	52.11

A summary of the Plans’ performance-based stock award activity, based on the target level of the awards, for the years ended December 31, 2022, 2021 and 2020 is as follows:


	2022			2021			2020
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	557,255	$	62.94	482,608	$	71.15	465,515	$	74.37
Granted	160,598	97.14		208,851	58.99		170,032	63.61
Added by performance factor at vesting	—	—		—	—		48,831	72.59
Vested and issued	—	—		—	—		(180,789)	72.59
Forfeited or canceled	(172,474)	71.52		(134,204)	86.30		(20,981)	72.46
Outstanding at end of year	545,379	$	70.30	557,255	$	62.94	482,608	$	71.15
Vested, but deferred, at year end	35,696	$	44.38	35,160	$	43.69	34,609	$	43.14