Supplementary Quarterly Financial Information (Unaudited) - Schedule of Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	[1]	Sep. 30, 2015	[1]	Jun. 30, 2015	[1]	Mar. 31, 2015	[1]	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 586,627	$ 584,937	$ 580,994	$ 498,029	$ 482,185		$ 404,933		$ 478,871		$ 295,959		$ 2,250,587	$ 1,661,948	$ 1,356,362
Gross profit	82,840	82,655	82,999	70,307	63,113		60,143		61,966		39,105		318,801	224,327	192,067
Income (loss) from continuing operations	4,710	5,321	7,406	156	(14,116)		(483)		175		(3,524)		17,593	(17,948)	7,035
Income (loss) from discontinued operations, net of taxes					(51)		(302)		74		(31)			$ (310)	$ (1,570)
Net income (loss)	$ 4,710	$ 5,321	$ 7,406	$ 156	$ (14,167)		$ (785)		$ 249		$ (3,555)
Basic and diluted earnings (loss) per common share from continuing operations: Basic	$ 0.40	$ 0.45	$ 0.63	$ 0.01	$ (1.21)		$ (0.04)		$ 0.01		$ (0.29)		$ 1.49	$ (1.52)	$ 0.45
Basic and diluted earnings (loss) per common share from continuing operations: Diluted	$ 0.37	$ 0.43	$ 0.61	$ 0.01	$ (1.21)		$ (0.04)		$ 0.01		$ (0.29)		$ 1.40	$ (1.52)	$ 0.42

[1] All amounts reported herein have been recast to present all four of our retail stores and our OnSale and eCost businesses as discontinued operations.