Notes Receivable and Allowance or Losses Schedule Of Notes Receivable (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Notes Receivable, Related Parties	$ 35,367	$ 29,840
Allowance for losses on non-impaired loans	1,165	1,020
Allowance for losses on receivables specifically evaluated for impairment	8,289	8,208
Total loan reserves	9,454	9,228
Net carrying value	25,913	20,612
Current portion, net	6,527	3,104
Long-term portion, net	19,386	17,508
Forgivable Notes Receivable [Member]
Notes Receivable, Related Parties	8,561	7,948
Allowance for losses on non-impaired loans	856	795
Allowance for losses on receivables specifically evaluated for impairment	0	0
Total loan reserves	856	795
Net carrying value	7,705	7,153
Current portion, net	150	102
Long-term portion, net	7,555	7,051
Mezzanine & Other Notes Receivable [Member]
Notes Receivable, Related Parties	26,806	21,892
Allowance for losses on non-impaired loans	309	225
Allowance for losses on receivables specifically evaluated for impairment	8,289	8,208
Total loan reserves	8,598	8,433
Net carrying value	18,208	13,459
Current portion, net	6,377	3,002
Long-term portion, net	11,831	10,457
Senior Notes [Member]
Notes Receivable, Related Parties	11,191	7,900
Senior Notes [Member] \| Forgivable Notes Receivable [Member]
Notes Receivable, Related Parties	0	0
Senior Notes [Member] \| Mezzanine & Other Notes Receivable [Member]
Notes Receivable, Related Parties	11,191	7,900
Senior Subordinated Notes [Member]
Notes Receivable, Related Parties	14,984	13,992
Senior Subordinated Notes [Member] \| Forgivable Notes Receivable [Member]
Notes Receivable, Related Parties	0	0
Senior Subordinated Notes [Member] \| Mezzanine & Other Notes Receivable [Member]
Notes Receivable, Related Parties	14,984	13,992
Unsecured Notes [Member]
Notes Receivable, Related Parties	9,192	7,948
Unsecured Notes [Member] \| Forgivable Notes Receivable [Member]
Notes Receivable, Related Parties	8,561	7,948
Unsecured Notes [Member] \| Mezzanine & Other Notes Receivable [Member]
Notes Receivable, Related Parties	$ 631	$ 0

For an unclassified balance sheet, amounts due from parties associated with the reporting entity as evidenced by a written promise to pay.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 46R

-Paragraph 16, 17

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph k

-Subparagraph 1

-Article 4

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(k)(1))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Related Parties

-URI http://asc.fasb.org/extlink&oid=16382449

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 3

-Article 7

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 57

-Paragraph 2

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.3)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

- Definition

Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due within 1 year (or 1 business cycle).

+ References+ Details

- Definition

Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due after 1 year (or 1 business cycle).

+ References+ Details