CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net revenue:
Online sponsorship and advertising	$ 20,772	$ 19,012	$ 40,907	$ 37,601
Registry services	2,409	1,988	3,583	3,002
Merchandise	6,361	6,916	10,179	12,525
Publishing and other	7,446	7,520	12,592	12,087
Total net revenue	36,988	35,436	67,261	65,215
Cost of revenue:
Online sponsorship and advertising	581	478	1,076	892
Merchandise	3,706	3,912	6,184	6,970
Publishing and other	2,719	2,374	4,442	3,766
Total cost of revenue	7,006	6,764	11,702	11,628
Gross profit	29,982	28,672	55,559	53,587
Operating expenses:
Product and content development	7,136	6,874	14,008	13,466
Sales and marketing	10,070	10,258	20,046	21,411
General and administrative	5,267	5,401	10,086	11,035
Depreciation and amortization	1,146	927	2,249	1,873
Total operating expenses	23,619	23,460	46,389	47,785
Income from operations	6,363	5,212	9,170	5,802
Loss in equity interests	(62)	(10)	(119)	(10)
Interest and other income (expense), net	16	(5)	29	(9)
Income before income taxes	6,317	5,197	9,080	5,783
Provision for income taxes	2,229	2,079	3,319	2,313
Net income	4,088	3,118	5,761	3,470
Plus: net loss attributable to noncontrolling interest	0	20	0	65
Net income attributable to XO Group Inc.	$ 4,088	$ 3,138	$ 5,761	$ 3,535
Net income per share attributable to XO Group Inc. common stockholders:
Basic (usd per share)	$ 0.17	$ 0.13	$ 0.23	$ 0.14
Diluted (usd per share)	$ 0.16	$ 0.13	$ 0.23	$ 0.14
Weighted average number of shares used in calculating net earnings per share
Basic (shares)	24,621	24,488	24,541	25,004
Diluted (shares)	25,594	25,078	25,426	25,585