Earnings per Share (Tables)

3 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares

The following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted earnings per share (in thousands):

	Three Months Ended
	March 31,
	2017	2016
Weighted average basic common shares outstanding	44,159	42,380
Effect of dilutive securities:
Performance shares	138	83
Restricted stock	50	57
Weighted average diluted common and potential common shares outstanding	44,347	42,520