Notes Receivable and Allowance for Losses Schedule Of Notes Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	$ 113,908	$ 94,444
Allowance for losses on non-impaired loans	6,102	5,979
Allowance for losses on receivables specifically evaluated for impairment	1,647	786
Total loan reserves	7,749	6,765
Net carrying value	106,159	87,679
Current portion, net	7,709	5,107
Long-term portion, net	98,450	82,572
Forgivable Notes Receivable
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	51,401	44,333
Allowance for losses on non-impaired loans	5,052	4,615
Allowance for losses on receivables specifically evaluated for impairment	0	0
Total loan reserves	5,052	4,615
Net carrying value	46,349	39,718
Current portion, net	295	143
Long-term portion, net	46,054	39,575
Mezzanine & Other Notes Receivable
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	62,507	50,111
Allowance for losses on non-impaired loans	1,050	1,364
Allowance for losses on receivables specifically evaluated for impairment	1,647	786
Total loan reserves	2,697	2,150
Net carrying value	59,810	47,961
Current portion, net	7,414	4,964
Long-term portion, net	52,396	42,997
Senior
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	52,176	40,388
Senior \| Forgivable Notes Receivable
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	0	0
Senior \| Mezzanine & Other Notes Receivable
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	52,176	40,388
Subordinated
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	6,416	6,197
Subordinated \| Forgivable Notes Receivable
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	0	0
Subordinated \| Mezzanine & Other Notes Receivable
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	6,416	6,197
Unsecured
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	55,316	47,859
Unsecured \| Forgivable Notes Receivable
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	51,401	44,333
Unsecured \| Mezzanine & Other Notes Receivable
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	$ 3,915	$ 3,526

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Allowance for Losses on Non-impaired Loans

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