Consolidated Statements of Stockholders' Equity - 9 months ended Sep. 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	32,780
Stock options exercised and restricted stock awards vested, including tax benefits	4,857	$ 2	4,855
Stock options exercised and restricted stock awards vested, including tax benefits (in shares)		516
Share-based compensation	2,076		2,076
Stock repurchased and retired	(9,436)	$ (1)	(6,931)	(2,504)
Stock repurchased and retired (in shares)		(419)
Dividends	(5,965)			(5,965)
Balance at Sep. 30, 2015	$ 198,371	$ 217	$ 0	$ 198,154
Balance (in shares) at Sep. 30, 2015		54,139