Goodwill and Other Intangibles (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Goodwill
Balance at the beginning of the period			$ 274,292,000
Impairment losses	(274,285,000)	(225,035,000)	(274,285,000)	(225,035,000)
Currency translation adjustment			(7,000)
U.S. Operations
Goodwill
Balance at the beginning of the period			245,105,000
Impairment losses	(245,100,000)		(245,103,000)
Currency translation adjustment			(2,000)
European Operations
Goodwill
Balance at the beginning of the period			28,486,000
Impairment losses	(28,500,000)		(28,481,000)
Currency translation adjustment			(5,000)
Asia Pacific Operations
Goodwill
Balance at the beginning of the period			701,000
Impairment losses	$ (700,000)		$ (701,000)