Finance Receivables (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Credit Quality Of Finanace Receivables:
Finance receivables	$ 525,090	$ 519,916
Internally Assigned Grade 1
Credit Quality Of Finanace Receivables:
Number of tenants and obligors	0	0
Finance receivables	0	0
Internally Assigned Grade 2
Credit Quality Of Finanace Receivables:
Number of tenants and obligors	1	1
Finance receivables	2,254	2,250
Internally Assigned Grade 3
Credit Quality Of Finanace Receivables:
Number of tenants and obligors	9	8
Finance receivables	435,384	430,713
Internally Assigned Grade 4
Credit Quality Of Finanace Receivables:
Number of tenants and obligors	3	3
Finance receivables	87,452	86,953
Internally Assigned Grade 5
Credit Quality Of Finanace Receivables:
Number of tenants and obligors	0	0
Finance receivables	$ 0	$ 0