Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Share-based Compensation [Abstract]

Schedule of Nonvested Share Activity

The following table summarizes the restricted stock award, deferred stock units, and performance unit award activity for the six months ended June 30, 2018:

	Restricted Stock	Deferred Stock Units	Performance Stock Units	Weighted Average Grant Date Fair Value
Outstanding at December 31, 2017	186,806	26,860	181,341	$	16.53
Granted	62,320	14,914	65,421	27.05
Vested	(35,946)	—	—	28.27
Adjustment for incentive awards expected to vest	—	—	(5,051)	14.86
Cancelled and forfeited	(14,425)	—	(11,880)	15.60
Outstanding at June 30, 2018	198,755	41,774	229,831	$	18.68