Long-Term Receivables, net (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Deficiency payments:
Long-term receivables	$ 15,346	$ 14,177
Bradley receivables
Deficiency payments:
Valuation allowance	(2,484)	(2,484)
Long-term receivables	15,317	14,126
Deficiency payments receivable
Deficiency payments:
Balance at the beginning of the year	13,407	12,070
Deficiency payments made	1,658	1,716
Deficiency payments received	(467)	(379)
Balance at the end of the year	14,598	13,407
Other Bradley related, net
Deficiency payments:
Balance at the end of the year	3,203	3,203
Other long-term receivables
Deficiency payments:
Long-term receivables	$ 29	$ 51