Common Stock and Senior Convertible Preferred Stock (Tables)

12 Months Ended

Dec. 31, 2015

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Schedule of Changes in Senior Convertible Preferred Stock, Common Stock and Treasury Stock

Changes in senior convertible preferred stock, common stock and treasury stock for the three years ended December 31, 2015 are as follows:

	Year Ended December 31,
	2015			2014			2013
(Shares in thousands)
Senior Convertible Preferred Stock:
Balance at beginning and end of year		0			0			0
Common Stock:
Balance at beginning of year		21,938			21,722			21,585
Issued for employee stock plans		78			216			137
Balance at end of year		22,016			21,938			21,722
Treasury Stock:
Balance at beginning of year		(1,443	)		(1,390	)		(951	)
Shares repurchased		(16	)		(53	)		(439	)
Balance at end of year		(1,459	)		(1,443	)		(1,390	)