Stock Options and Other Equity-Based Incentive Instruments (Tables)

3 Months Ended

Mar. 31, 2018

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

Stock option activity during the three months ended March 31, 2018 is summarized in the following table:


	Number of Shares		Option Price per Share		Weighted Average Exercise Price		Value on Date of Grant	Weighted Average Fair Value
Outstanding at December 31, 2017		446,400	$	12.63 to $23.21	$	16.84
Options granted		—		— to —		—
Options exercised		—		— to —		—
Options forfeited		—		— to —		—
Outstanding at March 31, 2018		446,400	$	12.63 to $23.21	$	16.84

Summary of Options Outstanding

The following table shows the number, weighted-average exercise price, intrinsic value, and weighted average remaining contractual life of options exercisable, options not yet exercisable and total options outstanding as of March 31, 2018:


	Currently		Currently Not		Total
	Exercisable		Exercisable		Outstanding
Number of options		423,600		22,800		446,400
Weighted average exercise price	$	16.65	$	20.45	$	16.84
Intrinsic value (in thousands)	$	8,713	$	382	$	9,096
Weighted average remaining contractual term (yrs.)		3.6		5.5		3.7

Restricted Stock Unit (RSU) Activity

Restricted stock unit (RSU) activity is summarized in the following table for the dates indicated:


	Service Condition Vesting RSUs				Market Plus Service Condition Vesting RSUs
	Number of RSUs			Weighted Average Fair Value on Date of Grant	Number of RSUs		Weighted Average Fair Value on Date of Grant
Outstanding at December 31, 2017		68,457				52,829
RSUs granted		—				—
RSUs added through dividend credits		310				—
RSUs released		(494	)			—
RSUs forfeited/expired		—				—

Outstanding at March 31, 2018		68,273				52,829