Accounts Receivable (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Accounts Receivable [Abstract]
Retail and Wholesale	$ 536,713,000		$ 536,713,000		$ 581,152,000
Other	35,276,000		35,276,000		45,819,000
Less: Allowance for doubtful accounts	(85,494,000)		(85,494,000)		(93,267,000)
Accounts receivable, net	486,495,000		486,495,000		533,704,000
Bad debt expense	$ 16,100,000	$ 24,100,000	$ 32,300,000	$ 40,700,000