Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2014

Accounting Policies [Abstract]

Schedule of Earnings Per Share

The following table reconciles the number of common shares outstanding at June 30 of each year to the weighted average 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,
	2014		2013		2014		2013
	(In thousands)
Weighted average basic common shares outstanding—basic		40,327		40,636		40,501		40,583
Dilutive effect of common stock options and awards		235		185		222		184
Weighted average diluted common shares outstanding—diluted		40,562		40,821		40,723		40,767