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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2024

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary Of PSU Transactions

			Number		Weighted
			of		Average
			Share Units		Fair Value
Nonvested share units at beginning of period			531,437		$	40.03
Granted			227,284			38.10
Performance criteria adjustment			(155,959)			31.50
Share units issued			(96,425)			43.40
Forfeited			(46,419)			41.23
Nonvested share units at end of period			459,918			41.14

Summary Of RSU Transactions

			Number		Weighted
			of		Average
			Stock Units		Fair Value
Nonvested stock units at beginning of period			192,217		$	45.06
Granted			104,661			36.61
Stock units vested and issued			(65,625)			44.42
Forfeited			(19,828)			41.36
Nonvested stock units at end of period			211,425			41.40

Assumptions Used In The Pricing Model

	2024		2023
Expected term (years)		5.5		5.5
Risk-free interest rate		4.00%		4.03%
Expected volatility		28.30%		27.80%
Dividend yield		3.43%		2.53%
Grant date fair value per option	$	8.12	$	11.37

Summary Of Stock Option Transactions

				Weighted			Weighted
				Average			Average		Aggregate
				Exercise			Remaining		Intrinsic
		Shares		Price			Life (years)		Value
Outstanding at beginning of period		882,442		$	37.03
Granted		119,548			35.78
Forfeited		(17,917)			39.27
Expired		(7,103)			44.57
Exercised		(15,383)			34.94
Outstanding at end of period		961,587		$	36.81		5.2		$	2,598
Exercisable at end of period		786,865		$	36.24		4.5		$	2,296

Summary Of Restricted Stock Transactions

		Number		Weighted
		of		Average
		Shares		Fair Value
Nonvested restricted stock at beginning of period		1,412		$	35.42
Granted		-			-
Vested		-			-
Nonvested restricted stock at end of period		1,412		$	35.42

Performance Share Units [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary Of Compensation Costs

		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2024			2023			2024			2023
Stock-based compensation within operations and maintenance expenses		$	986		$	1,039		$	2,174		$	5,444
Income tax benefit			248			260			545			1,364

Restricted Stock Units [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary Of Compensation Costs

		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2024			2023			2024			2023
Stock-based compensation within operations and maintenance expenses		$	508		$	746		$	2,078		$	2,186
Income tax benefit			128			187			521			548

Stock Options [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary Of Compensation Costs

		Three Months Ended						Nine Months Ended
		September 30,							September 30,
		2024			2023			2024			2023
Stock-based compensation within operations and maintenance expenses		$	32		$	181		$	233		$	480
Income tax benefit			8			45			58			120

Restricted Stock [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary Of Compensation Costs

		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2024			2023			2024			2023
Stock-based compensation within operations and maintenance expenses		$	13		$	12		$	37		$	37
Income tax benefit			3			3			10			10

Stock Awards [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary Of Compensation Costs

		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2024			2023			2024			2023
Stock-based compensation within operations and maintenance expenses		$	-		$	-		$	840		$	780
Income tax benefit			-			-			233			219

Summary Of Nonvested Share Activity

		Number		Weighted
		of		Average
		Stock Awards		Fair Value
Nonvested stock awards at beginning of period		-		$	-
Granted		22,813			36.82
Vested		(22,813)			36.82
Nonvested stock awards at end of period		-			-

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