Notes Receivable And Allowance For Losses Schedule Of Notes Receivable (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Notes Receivable, Related Parties	$ 60,068	$ 29,840
Allowance for losses on non-impaired loans	2,261	1,020
Allowance for losses on receivables specifically evaluated for impairment	8,289	8,208
Total loan reserves	10,550	9,228
Net carrying value	49,518	20,612
Current portion, net	14,415	3,104
Long-term portion, net	35,103	17,508
Forgivable Notes Receivable
Allowance for losses on non-impaired loans	1,623	795
Allowance for losses on receivables specifically evaluated for impairment	0	0
Total loan reserves	1,623	795
Net carrying value	14,612	7,153
Current portion, net	420	102
Long-term portion, net	14,192	7,051
Mezzanine & Other Notes Receivable
Notes Receivable, Related Parties	43,833	21,892
Allowance for losses on non-impaired loans	638	225
Allowance for losses on receivables specifically evaluated for impairment	8,289	8,208
Total loan reserves	8,927	8,433
Net carrying value	34,906	13,459
Current portion, net	13,995	3,002
Long-term portion, net	20,911	10,457
Senior Notes
Notes Receivable, Related Parties	27,549	7,900
Senior Notes | Forgivable Notes Receivable
Notes Receivable, Related Parties	0	0
Senior Notes | Mezzanine & Other Notes Receivable
Notes Receivable, Related Parties	27,549	7,900
Senior Subordinated Notes
Notes Receivable, Related Parties	15,019	13,992
Senior Subordinated Notes | Forgivable Notes Receivable
Notes Receivable, Related Parties	0	0
Senior Subordinated Notes | Mezzanine & Other Notes Receivable
Notes Receivable, Related Parties	15,019	13,992
Unsecured Notes
Notes Receivable, Related Parties	17,500	7,948
Unsecured Notes | Forgivable Notes Receivable
Notes Receivable, Related Parties	16,235	7,948
Unsecured Notes | Mezzanine & Other Notes Receivable
Notes Receivable, Related Parties	$ 1,265	$ 0