Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Equity [Abstract]

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

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

	Year Ended December 31,
	2021			2020			2019
	(In thousands)
Outstanding shares of voting common stock at the beginning of year		38,005			37,936			37,640
Exercise of stock options		92			177			147
Issuance of restricted stock, net of cancellations		48			56			161
Shares withheld for withholding tax payments		(75	)		(125	)		(98	)
Treasury shares used for acquisition		—			—			146
Repurchases		(151	)		(39	)		(60	)
Outstanding shares of voting common stock at the end of year		37,919			38,005			37,936