Long-Term Receivables, Net (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Deficiency payments:
Total long-term receivables	$ 14,989	$ 15,346
Bradley receivables
Deficiency payments:
Valuation allowance	(2,484)	(2,484)
Total long-term receivables	14,960	15,317
Deficiency payments receivable
Deficiency payments:
Balance at the beginning of the year	14,598	13,407
Deficiency payments made	403	1,658
Deficiency payments received	(760)	(467)
Balance at the end of the period	14,241	14,598
Other Bradley related, net
Deficiency payments:
Balance at the end of the period	3,203	3,203
Other long-term receivables
Deficiency payments:
Total long-term receivables	$ 29	$ 29