Accounts Receivable (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Accounts Receivable [Abstract]
Retail and Wholesale	$ 624,852,000		$ 624,852,000		$ 639,842,000
Other	40,446,000		40,446,000		52,363,000
Less: Allowance for doubtful accounts	(107,725,000)		(107,725,000)		(107,048,000)
Accounts receivable, net	557,573,000		557,573,000		585,157,000
Accounts receivable and allowance for doubtful accounts, fair value adjustment					9,800,000
Bad debt expense	20,800,000	19,300,000	61,500,000	65,700,000
Customer volume discount reduction					$ 31,000,000