Consolidated Statements of Stockholders' Equity - 6 months ended Jun. 30, 2015 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings
Balance at Dec. 31, 2014	$ 174,059	$ 216	$ 0	$ 173,843
Balance (in shares) at Dec. 31, 2014		54,042
Net income	19,529
Stock options exercised and restricted stock awards vested, including tax benefits	4,986	$ 2	4,984
Stock options exercised and restricted stock awards vested, including tax benefits (in shares)		498
Share-based compensation	1,281		1,281
Stock repurchased and retired	(6,444)	$ (1)	(6,265)	(178)
Stock repurchased and retired (in shares)		(276)
Dividends	(5,982)			(5,982)
Balance at Jun. 30, 2015	$ 187,429	$ 217	$ 0	$ 187,212
Balance (in shares) at Jun. 30, 2015		54,264