Stock Based Compensation (Tables)

3 Months Ended

Mar. 31, 2022

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Changes in Restricted Stock Units

The following table summarizes information about the changes in restricted stock units for the three-months ended March 31, 2022.

	For the three-months ended
	March 31, 2022
	Restricted Stock Units Outstanding		Weighted Average Grant Date Fair Value
Balance at beginning of period		22,597	$	48.91
Grants		—		—
Vesting		—		—
Forfeited/expired		—		—
Balance at end of period		22,597	$	48.91

Schedule of Changes in Performance Stock Units

The following table summarizes information about the changes in PSUs as of and for the three-months ended March 31, 2022. There was no PSU activity during the three-months ended March 31, 2021.

	For the three-months ended
	March 31, 2022
	Performance-Based Restricted Stock Units Outstanding		Weighted Average Grant Date Fair Value
Balance at beginning of period		22,597	$	48.91
Grants		—		—
Vesting		—		—
Forfeited/expired		—		—
Balance at end of period		22,597	$	48.91

Schedule of Analysis of Stock Option Activity

An analysis of stock option activity for the three-months ended March 31, 2022 is presented in the table and narrative below:​​​​​​​

	Shares			Weighted- Average Ex. Price
Outstanding, December 31, 2021		1,669,976		$	25.11
Granted		—			—
Exercised		(172,751	)		18.27
Cancelled		(31,775	)		26.67
Outstanding, March 31, 2022		1,465,450			25.88
Exercisable, March 31, 2022		715,057		$	19.18

Summary of Vested and Unvested Restricted Stock Outstanding

The following table summarizes information about vested and unvested restricted stock.

	For the three-months ended March 31,
	2022					2021
	Restricted Stock Outstanding			Weighted Average Grant Date Fair Value		Restricted Stock Outstanding			Weighted Average Grant Date Fair Value
Balance at beginning of period		46,598		$	35.75		95,888		$	29.89
Grants		615			49.60		—			—
Vesting		(3,161	)		32.06		(993	)		34.55
Forfeited/expired		(200	)		29.70		(479	)		34.55
Balance at end of period		43,852		$	36.24		94,416		$	29.82