DISCLOSURES ABOUT SEGMENTS OF AN ENTERPRISE AND RELATED INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Mar. 31, 2013 item	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 segment	Sep. 30, 2012	Sep. 30, 2013 Senior Secured Notes	Nov. 30, 2010 Senior Secured Notes	Sep. 30, 2013 Membership Services	Sep. 30, 2012 Membership Services	Sep. 30, 2013 Membership Services	Sep. 30, 2012 Membership Services	Sep. 30, 2013 Retail	Sep. 30, 2012 Retail	Sep. 30, 2013 Retail	Sep. 30, 2012 Retail	Sep. 30, 2013 Combined	Sep. 30, 2012 Combined	Sep. 30, 2013 Combined	Sep. 30, 2012 Combined
DISCLOSURES ABOUT SEGMENTS OF AN ENTERPRISE AND RELATED INFORMATION
Number of reportable segments				2
Number of remaining outdoor powersports magazine titles	7
Number of powersports shows sold	2
Number of conferences sold	2
Segment information
Stated interest rate (as a percent)						11.50%	11.50%
Revenues from external customers		$ 148,920	$ 139,613	$ 419,829	$ 396,005			$ 46,457	$ 44,254	$ 146,350	$ 140,661	$ 102,463	$ 95,359	$ 273,479	$ 255,344	$ 148,920	$ 139,613	$ 419,829	$ 396,005
Depreciation and amortization		3,120	3,791	9,331	10,623			504	1,046	1,656	2,965	1,866	1,822	5,530	5,259	2,370	2,868	7,186	8,224
Gain (loss) on sale of property and equipment		(95)	(2)	1,728	1,257			(1)	1	1,833	1,302	(94)	(3)	(105)	(45)	(95)	(2)	1,728	1,257
Interest income		197	215	597	651			562	641	1,746	1,977					562	641	1,746	1,977
Interest expense		9,758	11,191	29,322	33,552			26	25	89	25	526	643	1,641	1,896	552	668	1,730	1,921
Segment operating profit		$ 16,983	$ 13,040	$ 49,408	$ 39,250			$ 16,770	$ 14,724	$ 55,552	$ 47,839	$ 4,368	$ 3,230	$ 7,609	$ 5,902	$ 21,138	$ 17,954	$ 63,161	$ 53,741