Segment Reporting (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 segment	Jun. 30, 2011	Dec. 31, 2011
Segment Reporting
Number of operating segments			4
Segment Reporting information
Total revenues	$ 126,910,000	$ 142,617,000	$ 263,285,000	$ 292,695,000
(Loss) income before income tax (benefit) expense	(270,560,000)	(234,591,000)	(262,066,000)	(217,460,000)
Identifiable assets	2,049,381,000	3,802,581,000	2,049,381,000	3,802,581,000	2,178,069,000
Acquisition related costs		2,500,000		2,500,000
Impairment charge on goodwill included in loss before income tax expense	274,285,000	225,035,000	274,285,000	225,035,000
Restructuring charges included in loss before income tax expense		17,678,000		17,678,000
U.S. Operations
Segment Reporting information
Total revenues	81,915,000	93,893,000	166,504,000	194,404,000
(Loss) income before income tax (benefit) expense	(243,909,000)	(236,250,000)	(240,556,000)	(222,701,000)
Identifiable assets	1,020,351,000	1,302,240,000	1,020,351,000	1,302,240,000
Impairment charge on goodwill included in loss before income tax expense	245,100,000		245,103,000
Restructuring charges included in loss before income tax expense		15,400,000		15,400,000
Canadian Operations
Segment Reporting information
Total revenues	20,319,000	20,828,000	41,150,000	42,667,000
(Loss) income before income tax (benefit) expense	3,521,000	4,526,000	7,383,000	9,643,000
Identifiable assets	79,839,000	118,814,000	79,839,000	118,814,000
Restructuring charges included in loss before income tax expense		700,000		700,000
European Operations
Segment Reporting information
Total revenues	15,492,000	17,501,000	35,619,000	35,876,000
(Loss) income before income tax (benefit) expense	(27,723,000)	(906,000)	(25,238,000)	(400,000)
Identifiable assets	540,833,000	1,761,016,000	540,833,000	1,761,016,000
Impairment charge on goodwill included in loss before income tax expense	28,500,000		28,481,000
Restructuring charges included in loss before income tax expense		1,200,000		1,200,000
Asia Pacific Operations
Segment Reporting information
Total revenues	9,184,000	10,395,000	20,012,000	19,748,000
(Loss) income before income tax (benefit) expense	(2,449,000)	(1,961,000)	(3,655,000)	(4,002,000)
Identifiable assets	408,358,000	620,511,000	408,358,000	620,511,000
Impairment charge on goodwill included in loss before income tax expense	700,000		701,000
Restructuring charges included in loss before income tax expense		$ 300,000		$ 300,000