Other Income (Loss), Net (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2009	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Other Nonoperating Income Expense Net [Line Items] [Line Items]
Other income (loss), net		$ 9,135,000	$ 13,690,000	$ (41,127,000)
Debt tender offer	700,000,000			700,000,000
Repayment of unsecured debt				396,700,000
Gain on expiration/settlement of customer advances, net [Member]
Other Nonoperating Income Expense Net [Line Items] [Line Items]
Other income (loss), net		7,605,000	4,973,000	2,741,000
Litigation settlement proceeds [Member]
Other Nonoperating Income Expense Net [Line Items] [Line Items]
Other income (loss), net		1,495,000	3,364,000	2,749,000
Split dollar life insurance policy settlement [Member]
Other Nonoperating Income Expense Net [Line Items] [Line Items]
Other income (loss), net		0	4,454,000	0
Loss on retirement of debt, net [Member]
Other Nonoperating Income Expense Net [Line Items] [Line Items]
Other income (loss), net	(53,700,000)	0	0	(45,939,000)
Other, net [Member]
Other Nonoperating Income Expense Net [Line Items] [Line Items]
Other income (loss), net		35,000	899,000	(678,000)
Gain on retirement of debt [Member]
Other Nonoperating Income Expense Net [Line Items] [Line Items]
Other income (loss), net				$ 7,800,000