Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Revenue, net
Total net revenue	$ 526,182	$ 441,564	$ 418,540	$ 413,677	$ 480,270	$ 391,211	$ 388,013	$ 398,344	$ 1,799,963		$ 1,657,838		$ 1,497,103
Cost of goods sold
Total cost of goods sold	428,178	361,848	342,218	336,370	397,161	318,760	314,356	322,907	1,468,614		1,353,184		1,218,044
Gross profit	98,004	79,716	76,322	77,307	83,109	72,451	73,657	75,437	331,349		304,654		279,059
Operating expenses:
Sales and marketing	48,380	34,707	33,353	31,456	38,347	30,062	28,087	27,972	147,896	[1]	124,468	[1]	109,461	[1]
Technology	28,511	26,739	25,800	25,710	26,303	25,084	24,059	23,087	106,760	[1]	98,533	[1]	86,258	[1]
General and administrative	21,455	23,317	22,678	21,848	21,548	20,676	19,429	20,534	89,298	[1]	82,187	[1]	71,777	[1]
Litigation settlement	0	0	0	(19,520)					(19,520)		0		0
Restructuring									0		0		(360)
Total operating expenses	98,346	84,763	81,831	59,494	86,198	75,822	71,575	71,593	324,434		305,188		267,136
Operating income (loss)	(342)	(5,047)	(5,509)	17,813	(3,089)	(3,371)	2,082	3,844	6,915		(534)		11,923
Interest income	98	73	64	91	37	37	38	43	326		155		152
Interest expense	(658)	(212)	(5)	(2)	(66)	(62)	(8)	(4)	(877)		(140)		(39)
Other income, net	4,782	1,251	3,992	4,156	1,102	764	1,163	605	14,181		3,634		1,169
Income before income taxes	3,880	(3,935)	(1,458)	22,058	(2,016)	(2,632)	3,275	4,488	20,545		3,115		13,205
Provision for income taxes	1,119	(543)	(243)	8,964	(1,879)	(15)	1,849	1,940	9,297		1,895		4,404
Consolidated net income	2,761	(3,392)	(1,215)	13,094	(137)	(2,617)	1,426	2,548	11,248		1,220		8,801
Less: Net loss attributable to noncontrolling interests	(334)	(294)	(311)	(335)	(247)	(546)	(242)	(191)	(1,274)		(1,226)		(53)
Net income attributable to stockholders of Overstock.com, Inc.	$ 3,095	$ (3,098)	$ (904)	$ 13,429	$ 110	$ (2,071)	$ 1,668	$ 2,739	$ 12,522		$ 2,446		$ 8,854
Net income per common share—basic:
Net income attributable to common shares-basic (in dollars per share)	$ 0.12	$ (0.12)	$ (0.04)	$ 0.53	$ 0.00	$ (0.08)	$ 0.07	$ 0.11	$ 0.49		$ 0.10		$ 0.37
Weighted average common shares outstanding-basic (in shares)	25,391	25,356	25,341	25,280	25,234	24,681	24,306	24,213	25,342		24,612		23,999
Net income per common share—diluted:
Net income attributable to common shares-diluted (in dollars per share)	$ 0.12	$ (0.12)	$ (0.04)	$ 0.53	$ 0.00	$ (0.08)	$ 0.07	$ 0.11	$ 0.49		$ 0.10		$ 0.36
Weighted average common shares outstanding-diluted (in shares)	25,540	25,356	25,341	25,290	25,266	24,681	24,398	24,390	25,426		24,703		24,317
Partner and other
Revenue, net
Total net revenue	$ 500,505	$ 416,944	$ 393,910	$ 387,026	$ 446,671	$ 357,590	$ 353,585	$ 362,209	$ 1,698,385		$ 1,520,055		$ 1,349,643
Cost of goods sold
Total cost of goods sold	404,366	337,893	319,120	310,964	364,835	286,771	283,121	290,380	1,372,343		1,225,107		1,088,791
Direct
Revenue, net
Total net revenue	25,677	24,620	24,630	26,651	33,599	33,621	34,428	36,135	101,578		137,783		147,460
Cost of goods sold
Total cost of goods sold	$ 23,812	$ 23,955	$ 23,098	$ 25,406	$ 32,326	$ 31,989	$ 31,235	$ 32,527	96,271	[1]	128,077	[1]	129,253	[1]
Gross profit									$ 5,307		$ 9,706		$ 18,207

[1] (1) Includes stock-based compensation as follows (Note 15): Cost of goods sold — direct $266 $179 $181 Sales and marketing 249 217 336 Technology 777 646 751 General and administrative 3,599 2,484 2,767 Total $4,891 $3,526 $4,035