Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

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

Summary of restricted share and performance share activity

A summary of restricted share activity for the three months ended March 31, 2018 is as follows:

	2018
	Time-Based				Performance-Based
	Number of Shares		Weighted Average Grant Date Fair Value		Number of Shares	Weighted Average Grant Date Fair Value
	(In whole shares)				(In whole shares)
Outstanding - beginning of year	342,859		$	34.71	165,000	$	38.10
Granted	16,500		43.74		—	—
Vested	(14,667	)	37.76		—	—
Canceled or expired	(4,500	)	37.50		—	—
Outstanding - end of period	340,192		$	34.71	165,000	$	38.10