Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Share-based Payment Arrangement [Abstract]

Summary of Company's Stock Option Plan Activity

A summary of the stock option activity for the three and six months ended June 30, 2022 and 2021 is as follows (option amounts not in thousands):

					Weighted
			Weighted		Average
			Average		Remaining	Aggregate
	Number of		Exercise		Contractual	Intrinsic
	Options		Price		Term	Value
Outstanding at January 1, 2022		440,000	$	45.25	6.6 years	$	18,119
Outstanding at March 31, 2022		440,000	$	45.25	6.3 years	$	10,494
Outstanding at June 30, 2022		440,000	$	45.25	6.1 years	$	9,354
Exercisable at June 30, 2022		357,500	$	44.23	5.8 years	$	7,965
Outstanding at January 1, 2021		440,000	$	45.25	7.6 years	$	3,113
Outstanding at March 31, 2021		440,000	$	45.25	7.3 years	$	13,464
Outstanding at June 30, 2021		440,000	$	45.25	7.1 years	$	23,883
Exercisable at June 30, 2021		275,000	$	43.40	6.6 years	$	15,436

Information with Respect to Unvested Restricted Stock Awards Stock Option and Incentive Plan

Information with respect to the activity of unvested restricted stock awards during the three and six months ended June 30, 2022 and 2021 is as follows:

	Number of			Weighted
	Restricted			Average
	Stock			Grant Date
	Awards			Fair Value
Nonvested at January 1, 2022		679,997		$	39.72
Granted		4,000		$	70.58
Vested		(50,667	)	$	50.68
Forfeited		(3,265	)	$	45.85
Nonvested at March 31, 2022		630,065		$	39.00
Granted		3,000		$	67.30
Vested		(51,125	)	$	45.04
Forfeited		(700	)	$	45.61
Nonvested at June 30, 2022		581,240		$	38.61
Nonvested at January 1, 2021		423,787		$	43.79
Granted		548,086		$	36.95
Vested		(41,250	)	$	42.18
Cancelled		(141,600	)	$	43.76
Forfeited		(2,050	)	$	45.67
Nonvested at March 31, 2021		786,973		$	39.11
Granted		3,000		$	76.00
Vested		(68,541	)	$	43.80
Cancelled		(1,160	)	$	45.96
Forfeited		(9,060	)	$	46.44
Nonvested at June 30, 2021		711,212		$	38.71

Information about Deferred Tax Benefits Recognized Related to Restricted Stock Awards, Paid Dividends and the Fair Value of Vested Restricted Stock

The following table summarizes information about deferred tax benefits recognized and tax benefits realized related to restricted stock awards and paid dividends, and the fair value of vested restricted stock for the three and six months ended June 30, 2022 and 2021.

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
Deferred tax benefits recognized	$	639	$	495	$	1,291	$	459
Tax benefits realized for restricted stock and     paid dividends	$	902	$	1,357	$	1,304	$	1,412
Fair value of vested restricted stock	$	2,303	$	3,002	$	4,871	$	4,742