Stock Compensation (Tables)

12 Months Ended

Dec. 31, 2024

Share-Based Payment Arrangement [Abstract]

Summary of Stock Option Activity

The following table summarizes stock option activity for the three-year period ended December 31, 2024:

	Number of shares			Weighted- average exercise price
Options outstanding - December 31, 2021		227,262		$	43.56
Options exercised		(25,986	)		27.04
Options forfeited		(4,529	)		60.82
Options outstanding - December 31, 2022		196,747		$	45.35
Options exercised		(30,433	)		31.77
Options outstanding - December 31, 2023		166,314		$	47.83
Options exercised		(22,400	)		33.55
Options outstanding - December 31, 2024		143,914		$	50.06
Exercisable options —
December 31, 2022		163,316		$	42.23
December 31, 2023		147,937			46.06
December 31, 2024		137,429			49.45

Schedule of Aggregate Intrinsic Value Related to Options Exercised, Outstanding and Exercisable

The following table summarizes the aggregate intrinsic value related to options exercised, outstanding and exercisable as of and for the years ended December 31:

	2024		2023		2022
	(In thousands)
Exercised	$	3,272	$	3,919	$	2,175
Outstanding		23,323		17,718		12,529
Exercisable		22,356		16,023		10,910

Schedule of Fair Value of Nonvested Shares

The fair value of nonvested shares is determined based on the market price of the shares on the grant date.

	Shares			Fair value per share
Nonvested at December 31, 2021		57,067		$	72.62
Granted		21,637			97.41
Vested		(23,302	)		66.87
Forfeited		(4,327	)		86.53
Nonvested at December 31, 2022		51,075		$	84.85
Granted		21,261			125.11
Vested		(30,408	)		75.97
Forfeited		(836	)		97.68
Nonvested at December 31, 2023		41,092		$	111.99
Granted		18,782			161.50
Vested		(16,591	)		104.74
Forfeited		(1,244	)		139.72
Nonvested at December 31, 2024		42,039		$	136.15

Summary of Performance Share Activity

A summary of performance share activity for the three years ended December 31 is as follows:

	Performance Shares			Weighted Average Grant Date Fair Value
Nonvested at December 31, 2021		22,122		$	100.37
Granted		16,870			97.62
Adjustment for expected performance results		6,746			97.62
Forfeited		(2,892	)		99.43
Nonvested at December 31, 2022		42,846		$	98.92
Granted		18,698			123.77
Adjustment for expected performance results		10,701			120.74
Nonvested at December 31, 2023		72,245		$	108.59
Granted		18,796			159.92
Adjustment for expected performance results		10,554			160.40
Vested		(20,973	)		100.37
Forfeited		(2,628	)		137.88
Nonvested at December 31, 2024		77,994		$	129.20