Related Party Transactions - Additional Information (Detail) - USD ($) shares in Thousands, $ in Thousands		1 Months Ended	12 Months Ended
	Mar. 13, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Accounts receivable, related parties			$ 1,500	$ 1,800
Related party purchases			579	480	$ 3,100
M/I Homes Inc [Member]
Related Party Transaction [Line Items]
Accounts receivable, related parties			$ 800	$ 1,000
IBS [Member]
Related Party Transaction [Line Items]
Common Stock Repurchase, Shares	315	315
TCI Contracting, LLC [Member]
Related Party Transaction [Line Items]
Related party purchases					$ 2,600