Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Restricted Share

The following table summarizes restricted share activity for the grant periods ended December 31, 2017 and December 31, 2016:

	Year Ended December 31, 2017					Year Ended December 31, 2016
				Weighted-					Weighted-
				Average Grant					Average Grant
	Shares			Date Fair Value		Shares			Date Fair Value
Unvested restricted shares at beginning of period		216,348		$	38.98		221,484		$	37.18
Restricted shares granted		62,135			45.23		23,324			46.48
Restricted shares vested		(32,345	)		33.02		(28,460	)		31.18
Restricted shares forfeited		(568	)		45.23		—			45.23
Unvested restricted shares at end of period		245,570		$	41.33		216,348		$	38.98