Segment Information - Reconciliation of Income Statement Items from Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Reportable segments reconciliations:
Total revenues	$ 255,946	$ 299,802	$ 837,377	$ 841,834
Segment operating income (loss)	(13,217)	(29,546)	(43,585)	(53,013)
Interest income	65	81	571	200
Interest expense	(1,198)	(462)	(3,452)	(1,069)
Restructuring charges	(257)	(238)	(1,542)	(1,814)
Impairment charges			0	(884)
Income from continuing operations before income taxes	11,827	28,927	39,162	49,446
Marketing & Events Group
Reportable segments reconciliations:
Total revenues	188,863	226,662	732,360	731,071
Segment operating income (loss)	14,790	(2,366)	(18,977)	(29,556)
Restructuring charges	(25)	(186)	(496)	(392)
Marketing & Events International Segment
Reportable segments reconciliations:
Restructuring charges	(213)	(128)	(484)	(1,648)
Impairment charges	0	0	0	(884)
Travel & Recreation Group
Reportable segments reconciliations:
Total revenues	67,083	73,140	105,017	110,763
Segment operating income (loss)	(29,361)	(30,648)	(30,755)	(30,955)
Restructuring charges	(18)	(30)	(160)	41
Other Segments
Reportable segments reconciliations:
Segment operating income (loss)	(14,571)	(33,014)	(49,732)	(60,511)
Corporate
Reportable segments reconciliations:
Segment operating income (loss)	(1,354)	(3,468)	(6,147)	(7,498)
Restructuring charges	(1)	106	(402)	185
Intersegment Eliminations | Marketing & Events Group
Reportable segments reconciliations:
Total revenues	(4,321)	(5,595)	(13,475)	(13,517)
U.S. | Marketing & Events Group
Reportable segments reconciliations:
Total revenues	148,314	168,058	550,006	558,292
Segment operating income (loss)	9,039	(1,069)	(12,572)	(22,044)
International | Marketing & Events Group
Reportable segments reconciliations:
Total revenues	44,870	64,199	195,829	186,296
Segment operating income (loss)	$ 5,751	$ (1,297)	$ (6,405)	$ (7,512)