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Consolidated Statements of Stockholders' Equity - 6 months ended Jun. 30, 2018 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings
Balance at Dec. 31, 2017	$ 237,226	$ 210	$ 0	$ 237,016
Balance (in shares) at Dec. 31, 2017		52,422
Net income	15,951
Stock options exercised and restricted stock awards granted	2,299		2,298
Stock options exercised and restricted stock awards granted (in shares)		226
Share-based compensation	3,699		3,699
Stock repurchased and retired	(12,347)	$ (2)	(5,997)	(6,348)
Stock repurchased and retired (in shares)		(358)
Dividends	(8,391)			(8,391)
Balance at Jun. 30, 2018	$ 238,437	$ 209	$ 0	$ 238,228
Balance (in shares) at Jun. 30, 2018		52,290

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