Segment and Geographic Information (Schedule of Segment Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended												12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Net revenue	$ 74,338	$ 22,363	$ 22,004	$ 19,557	$ 66,339	[1]	$ 17,260	[1]	$ 17,804	[1]	$ 17,510	[1]	$ 138,262	$ 118,913	$ 99,057
Cost of revenue													111,145	97,848	83,602
Gross margin	14,838	4,250	4,409	3,620	14,147	[1]	2,256	[1]	2,096	[1]	2,567	[1]	27,117	21,065	15,455
Gross margin %													19.60%	17.70%	15.60%
Website
Segment Reporting Information [Line Items]
Net revenue	62,684	16,990	18,254	17,981	62,820		15,872		16,518		16,728		115,909	111,938	93,691
Cost of revenue	52,087	14,377	15,155	14,839	49,617		13,987		14,780		14,374		96,458	92,758	79,568
Gross margin	10,597	2,613	3,099	3,142	13,203		1,885		1,738		2,354		19,451	19,180	14,123
Gross margin %	16.90%	15.40%	17.00%	17.50%	21.00%		11.90%		10.50%		14.10%		16.80%	17.10%	15.10%
Wholesale
Segment Reporting Information [Line Items]
Net revenue	11,654	5,373	3,750	1,576	3,519		1,388		1,286		782		22,353	6,975	5,366
Cost of revenue	7,413	3,736	2,440	1,098	2,576		1,017		928		569		14,687	5,090	4,034
Gross margin	$ 4,241	$ 1,637	$ 1,310	$ 478	$ 943		$ 371		$ 358		$ 213		$ 7,666	$ 1,885	$ 1,332
Gross margin %	36.40%	30.50%	34.90%	30.30%	26.80%		26.70%		27.80%		27.20%		34.30%	27.00%	24.80%

[1] Certain amounts shown above that were previously reported have been adjusted for corrections of intra-period tax allocations.