Interim Financial Information Narrative (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net Income (Loss) Attributable to Parent	$ (7,295,000)	$ 2,864,000	$ (1,977,000)	$ 8,235,000	$ (35,028,000)	$ 12,800,000	$ 10,661,000	$ 7,454,000	$ 1,827,000	$ (4,113,000)	$ 25,341,000
Income Tax Expense (Benefit), Intraperiod Tax Allocation, Per Diluted Share	$ 0.06
Gains (Losses) on Extinguishment of Debt			(312,000)			(7,462,000)	(11,855,000)	(4,881,000)	(312,000)	(24,200,000)	(40,164,000)
Extinguishment of Debt, Gain (Loss), Net of Tax			(312,000)			(7,462,000)	(11,855,000)	(4,881,000)
Extinguishment of Debt, Gain (Loss), Per Share, Net of Tax			$ (0.01)			$ (0.23)	$ (0.36)	$ (0.15)
Regulatory and Compliance Costs	5,477,000	6,169,000	7,007,000	4,104,000
Regulatory and Compliance Costs, Net of Tax	5,477,000	6,169,000	5,582,000	3,500,000
Regulatory and Compliance Costs, Net of Tax, Per Diluted Share	$ 0.17	$ 0.19	$ 0.18	$ 0.11
Income Tax Expense (Benefit), Intraperiod Tax Allocation	1,956,000								5,758,000
Liability for Uncertain Tax Positions, Noncurrent			9,010,000
Income Tax Examination, Foreign Income Tax Expense (Benefit)									4,947,000
Income Tax Examination, Foreign Income Tax Expense (Benefit), Per Share			$ 0.28						$ (0.15)
Restructuring Charges	7,653,000	1,175,000	2,006,000	561,000	8,852,000	1,252,000	431,000		10,904,000	10,257,000	0
Restructuring Charges, Net of Tax	7,623,000	1,129,000	2,086,000	391,000	8,941,000	912,000	411,000
Restructuring Charges, Net of Tax, Per Diluted Share	$ 0.24	$ 0.04	$ 0.07	$ 0.01	$ 0.28	$ 0.03	$ 0.01
Goodwill and Intangible Asset Impairment	773,000				49,480,000				773,000	49,480,000	0
Goodwill and Intangible Asset Impairment, Net of Tax	698,000				48,719,000
Goodwill and Intangible Asset Impairment, Net of Tax, Per Diluted Share	$ 0.02				$ 1.53
Germany [Member]
Income Tax Examination, Foreign Income Tax Expense (Benefit)							5,100,000
Income Tax Examination, Foreign Income Tax Expense (Benefit), Net of Tax							$ (5,100,000)
Income Tax Examination, Foreign Income Tax Expense (Benefit), Per Share							$ 0.16