Treasury Stock

From time to time, our Board of Directors authorizes management to repurchase shares of our issued and outstanding common stock. As of December 31, 2017, we had no shares available for repurchase under the Board's authorizations.

Repurchased shares of our common stock were as follows:



	Year Ended December 31,
(In thousands)	2017		2016		2015
Shares repurchased	680		198		1,817
Cost of shares repurchased	$	39,085	$	12,647	$	89,395

Repurchased shares are recorded as shares held in treasury at cost. We hold these shares for future use as management and the Board of Directors deem appropriate.