Finance Receivables (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014 tenant	Dec. 31, 2013
Credit Quality Of Finanace Receivables
Number of tenants	230
Net investments in direct financing leases	$ 898,335	$ 363,420
Notes receivable	21,058	0
Internally Assigned Grade 1
Credit Quality Of Finanace Receivables
Number of tenants	4	3
Net investments in direct financing leases	86,345	42,812
Number of obligors	0	0
Notes receivable	0	0
Internally Assigned Grade 2
Credit Quality Of Finanace Receivables
Number of tenants	3	3
Net investments in direct financing leases	27,753	27,869
Number of obligors	1	0
Notes receivable	9,909	0
Internally Assigned Grade 3
Credit Quality Of Finanace Receivables
Number of tenants	22	8
Net investments in direct financing leases	642,838	284,968
Number of obligors	1	0
Notes receivable	11,149	0
Internally Assigned Grade 4
Credit Quality Of Finanace Receivables
Number of tenants	7	1
Net investments in direct financing leases	141,399	7,771
Number of obligors	0	0
Notes receivable	0	0
Internally Assigned Grade 5
Credit Quality Of Finanace Receivables
Number of tenants	0	0
Net investments in direct financing leases	0	0
Number of obligors	0	0
Notes receivable	$ 0	$ 0