Stock Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Restricted Share

The following table summarizes restricted share activity for the three months ended March 31, 2018:

	Three Months Ended March 31, 2018
				Weighted-
				Average Grant
	Shares			Date Fair Value
Unvested restricted shares at beginning of period		245,570		$	41.33
Restricted shares granted		81,595			36.17
Restricted shares vested		(14,214	)		47.08
Unvested restricted shares at end of period		312,951		$	39.73