Business Acquisition - (Details) - USD ($) $ in Thousands		3 Months Ended
	Jan. 08, 2018	Mar. 31, 2018	Mar. 31, 2017
Business Acquisitions
Contingent consideration (earn-out)		$ 2,418
Total revenues		152,008	$ 155,548
Net income (loss)		$ (2,343)	$ 2,439
Oakdale-Hampton Homes
Business Acquisitions
Acquisition price	$ 44,617
Consideration held as security	600
Earn-out | Oakdale-Hampton Homes
Business Acquisitions
Contingent consideration (earn-out)	$ 2,418