Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

Schedule of Earnings Per Share

The following table reconciles the weighted average basic number of common shares outstanding and the weighted average diluted number of common shares outstanding for the purpose of calculating basic and diluted earnings per share:

	Three months ended June 30,		Six months ended June 30,
	2017	2016	2017	2016
	(In thousands)
Weighted average common shares outstanding—basic	37,528	37,564	37,526	37,658
Dilutive effect of common stock options and awards	190	149	180	121
Weighted average common shares outstanding—diluted	37,718	37,713	37,706	37,779