Financial Instruments (Details 3) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands	9 Months Ended
	Sep. 30, 2011
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Long-lived assets, Level 3	$ 383,199
Long-lived intangible assets, Level 3	29,406
Investments Impairment Charge [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Impairment Expense	165,000
Impairment of Intangible Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Impairment Expense	$ 5,000