Consolidated Statements of Stockholders' Equity - 9 months ended Sep. 30, 2018 - USD ($) $ in Thousands	Total	Capital Stock, Common	Additional Paid-in Capital	Retained Earnings	Treasury Stock
Balance at Dec. 31, 2017	$ 574,645	$ 907	$ 3,518	$ 694,174	$ (123,954)
Net income	50,237	0	0	50,237	0
Dividends on common stock, $0.06 per share	(4,950)	0	0	(4,950)	0
Repurchases of common stock	(25,086)	0	0	0	25,086
Stock-based compensation, net of tax	(193)	0	(145)	0	(338)
Balance at Sep. 30, 2018	$ 595,039	$ 907	$ 3,373	$ 739,461	$ (148,702)