Consolidated Statements of Stockholders' Equity - 9 months ended Sep. 30, 2017 - USD ($) $ in Thousands	Total	Capital Stock, Common	Additional Paid-in Capital	Retained Earnings	Treasury Stock
Balance at Dec. 31, 2016	$ 505,826	$ 907	$ 3,433	$ 625,668	$ (124,182)
Net income	36,568	0	0	36,568	0
Dividends on common stock, $0.06 per share	(5,000)	0	0	(5,000)	0
Stock-based compensation, net of tax	142	0	(86)	0	228
Balance at Sep. 30, 2017	$ 537,536	$ 907	$ 3,347	$ 657,236	$ (123,954)