Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Summary of the Change in the Company's Outstanding Shares of Common Stock

The following is a summary of the change in the Company’s outstanding shares of voting common stock:

	Year Ended December 31,
		2015		2014		2013
	(In thousands)
Outstanding shares of voting common stock at the beginning of year		37,319		37,729		37,407
Exercise of stock options		183		120		256
Issuance of restricted stock, net of shares withheld for tax payments    and cancellations		178		116		66
Repurchases		(271	)	(646	)	—
Outstanding shares of voting common stock at the end of year		37,409		37,319		37,729