Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

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

Restricted Stock Activity

A summary of all restricted stock activity under the equity compensation plans for the nine months ended September 30, 2018 is as follows:

	For the Nine Months Ended  September 30, 2018
	Number of Shares		Weighted Average Grant Date Fair Value per Share
Non-vested outstanding at the beginning of the period	—		$	—
Granted	94,270		$	52.99
Vested	—		$	—
Forfeited	(1,247	)	$	53.60
Non-vested outstanding at the end of the period	93,023		$	52.98

Stock Options Valuation Assumptions

The value of the options granted was estimated at the date of grant using the Black-Scholes pricing model using the following assumptions:

Risk-free rate of return	1.26	%
Dividend yield	1.25	%
Expected share price volatility(1)	18.50	%
Expected life in years(2)	6.3 years

Stock Options Activity

A summary of option activity as of September 30, 2018, and changes during the period then ended is presented below:

	Number of Shares		Weighted-average exercise price		Weighted-average remaining years of contractual term	Aggregate intrinsic value (in thousands)
Outstanding at January 1, 2018	930,440		$	16.00
Granted	—		—
Forfeited	(13,185	)	16.00
Exercised	(97,402	)	16.00
Outstanding at September 30, 2018	819,853		$	16.00	7.8	$	39,238
Exercisable at September 30, 2018	355,487		$	16.00	7.8	$	17,014