Condensed Consolidated Statement of Changes In Stockholders' Equity - 9 months ended Sep. 30, 2017 - USD ($) $ in Thousands	Total	Capital Stock Preferred	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning Balance at Dec. 31, 2016	$ 146,292	$ 4	$ 6,715	$ 14,279	$ 142,652	$ (373)	$ (16,985)
Comprehensive income:
Net income	29,184				29,184
Other Comprehensive loss	(120)					(120)
Dividends and dividend equivalents, net of estimated forfeitures	(16,661)				(16,661)
Share-based compensation	1,686			1,686
Stock shares awarded, forfeited, and/or vested	433			(1,004)			1,437
Stock shares repurchased	(1,377)						(1,377)
Ending Balance at Sep. 30, 2017	$ 159,437	$ 4	$ 6,715	$ 14,961	$ 155,175	$ (493)	$ (16,925)