Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Information
Total revenues	$ 175,051	$ 202,005
Operating income (loss) from continuing operations	(95,340)	5,936
Goodwill Impairment	(85,923)	0
Amortization of intangible assets	(593)	0
Restructuring charges	(345)	(61)
International
Segment Information
Goodwill Impairment	(85,923)
North America
Segment Information
Goodwill Impairment	0
Operating segment | International
Segment Information
Total revenues	75,964	96,687
Operating income (loss) from continuing operations	(1,036)	6,413
Operating segment | North America
Segment Information
Total revenues	99,585	105,567
Operating income (loss) from continuing operations	6,544	9,996
Other
Segment Information
Total revenues	764	788
Operating income (loss) from continuing operations	125	76
Inter-segment
Segment Information
Total revenues	(1,262)	(1,037)
Corporate expenses
Segment Information
Operating income (loss) from continuing operations	(14,112)	(10,488)
Corporate expenses and operating segments
Segment Information
Operating income (loss) from continuing operations	(8,479)	5,997
Segment reconciling items
Segment Information
Goodwill Impairment	(85,923)	0
Amortization of intangible assets	(593)	0
Restructuring charges	$ (345)	$ (61)