CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock Windmark JV	Common Stock Watercrest JV	Common Stock	Retained Earnings Adjustment	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock	Non-controlling Interest Windmark JV	Non-controlling Interest Watercrest JV	Non-controlling Interest	Adjustment	Windmark JV	Total
Beginning Balance (in shares) at Dec. 31, 2018			60,672,034
Beginning Balance at Dec. 31, 2018			$ 331,395		$ 187,450	$ (674)				$ 14,940			$ 533,111
Increase (Decrease) in Stockholders' Equity
Allocation of ownership interest	$ (3,787)	$ (1,209)						$ (7,832)	$ 1,209			$ (11,619)
Capital contribution from non-controlling interest										1,784			1,784
Capital distribution to non-controlling interest										(200)			(200)
Stock based compensation expense			$ 50										50
Stock based compensation expense (in shares)			5,708
Repurchase of common shares							$ (18,794)						(18,794)
Repurchase of common shares (in shares)			(1,141,529)
Other comprehensive income (loss), net of tax						184							184
Net income					18,087					(53)			18,034
Ending Balance at Sep. 30, 2019			$ 326,449		205,537	(490)	(18,794)			9,848			522,550
Ending Balance (in shares) at Sep. 30, 2019			59,536,213
Beginning Balance (in shares) at Jun. 30, 2019			60,200,534
Beginning Balance at Jun. 30, 2019			$ 330,209		199,820	(70)	(7,073)			19,254			542,140
Increase (Decrease) in Stockholders' Equity
Allocation of ownership interest	$ (3,787)							$ (7,832)				$ (11,619)
Capital contribution from non-controlling interest										(1,683)			(1,683)
Stock based compensation expense			$ 27										27
Stock based compensation expense (in shares)			5,708
Repurchase of common shares							(11,721)						(11,721)
Repurchase of common shares (in shares)			(670,029)
Other comprehensive income (loss), net of tax						(420)							(420)
Net income					5,717					109			5,826
Ending Balance at Sep. 30, 2019			$ 326,449		205,537	(490)	(18,794)			9,848			$ 522,550
Ending Balance (in shares) at Sep. 30, 2019			59,536,213
Beginning Balance (in shares) at Dec. 31, 2019			59,414,583										59,414,583
Beginning Balance at Dec. 31, 2019			$ 305,631	$ (90)	214,225	(335)				10,149	$ (90)		$ 529,670
Increase (Decrease) in Stockholders' Equity
Capital contribution from non-controlling interest										7,496			7,496
Capital distribution to non-controlling interest										(386)			(386)
Stock based compensation expense			$ 45										45
Repurchase of common shares							(8,803)						(8,803)
Repurchase of common shares (in shares)			(532,034)
Other comprehensive income (loss), net of tax						(1,178)							(1,178)
Net income					25,417					249			25,666
Ending Balance at Sep. 30, 2020			$ 305,676		239,552	(1,513)	(8,803)			17,508			$ 552,420
Ending Balance (in shares) at Sep. 30, 2020			58,882,549										58,882,549
Beginning Balance (in shares) at Jun. 30, 2020			58,882,549
Beginning Balance at Jun. 30, 2020			$ 305,676		231,801	(1,530)	(8,803)			15,506			$ 542,650
Increase (Decrease) in Stockholders' Equity
Capital contribution from non-controlling interest										2,357			2,357
Capital distribution to non-controlling interest										(386)			(386)
Other comprehensive income (loss), net of tax						17							17
Net income					7,751					31			7,782
Ending Balance at Sep. 30, 2020			$ 305,676		$ 239,552	$ (1,513)	$ (8,803)			$ 17,508			$ 552,420
Ending Balance (in shares) at Sep. 30, 2020			58,882,549										58,882,549