Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Summary of operating results from continuing operations and assets by business segment
Revenues from unaffiliated customers	$ 37,256		$ 35,447	$ 120,759		$ 114,140
Intersegment revenues	0		0	0		0
Total net revenues	37,256		35,447	120,759		114,140
Operating income	(18,025)		4,195	(2,196)		21,132
North America
Summary of operating results from continuing operations and assets by business segment
Revenues from unaffiliated customers	26,209		25,147	86,368		82,415
Intersegment revenues	361		211	757		496
Total net revenues	26,570		25,358	87,125		82,911
Operating income	2,506		3,121	13,888		18,094
Europe
Summary of operating results from continuing operations and assets by business segment
Revenues from unaffiliated customers	11,047		10,300	34,391		31,725
Intersegment revenues	110		10	440		41
Total net revenues	11,157		10,310	34,831		31,766
Operating income	1,469		1,074	5,916		6,038
Elimination and Other
Summary of operating results from continuing operations and assets by business segment
Revenues from unaffiliated customers	0	[1]	0	0	[2]	0	[2]
Intersegment revenues	(471)	[1]	(221)	(1,197)	[2]	(537)	[2]
Total net revenues	(471)	[1]	(221)	(1,197)	[2]	(537)	[2]
Operating income	$ (22,000)	[1]	$ 0	$ (22,000)	[2]	$ (3,000)	[2]

[1] Amount represents a charge related to unexchanged promotional shares of $22.0 million for the three months ended September 30, 2013.

[2] Amount represents a charge related to unexchanged promotional shares of $22.0 million and $3.0 million for the nine months ended September 30, 2013 and September 30, 2012, respectively.