Consolidated Statements of Stockholders' Equity - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Total	Capital Stock, Common	Additional Paid-in Capital	Retained Earnings	Treasury Stock
Balance at Dec. 31, 2014	$ 476,587	$ 907	$ 4,058	$ 509,834	$ (38,212)
Net income	40,928	0	0	40,928	0
Dividends on common stock, $0.04 per share	(3,519)	0	0	3,519	0
Stock-based compensation, net of tax	714	0	(324)	0	1,038
Balance at Jun. 30, 2015	$ 514,710	$ 907	$ 3,734	$ 547,243	$ (37,174)