Condensed Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	AOCI Attributable to Parent	Treasury Stock	Retained Earnings	Parent	Noncontrolling Interest
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Dec. 31, 2018	$ 451,431	$ 18,625	$ 124,395	$ (8,310)	$ (66,392)	$ 380,431	$ 448,749	$ 2,682
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	8,844					8,727	8,727	117
Other Comprehensive Income (Loss), Net of Tax	5,669			5,669			5,669	0
Treasury Stock, Value, Acquired, Cost Method	(91)				(91)		(91)	0
Dividends, Common Stock, Cash	(2,994)					(2,994)	(2,994)	0
Sharebased Compensation Effect On Stockholders Equity	(1,783)		(2,340)		557		(1,783)	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Mar. 31, 2019	461,076	18,625	122,055	(2,641)	(65,926)	386,164	458,277	2,799
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Beginning Balance at Dec. 31, 2019	459,712	18,625	122,717	1,212	(69,724)	386,864	459,694	18
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	4,269					4,278	4,278	(9)
Other Comprehensive Income (Loss), Net of Tax	(111)			(111)			(111)	0
Treasury Stock, Value, Acquired, Cost Method	(1,472)				(1,472)		(1,472)	0
Dividends, Common Stock, Cash	(3,040)					(3,040)	(3,040)	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(3)						0	(3)
Sharebased Compensation Effect On Stockholders Equity	543		543				543	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Ending Balance at Mar. 31, 2020	$ 459,898	$ 18,625	$ 123,260	$ 1,101	$ (71,196)	$ 388,102	$ 459,892	$ 6