Agreements and Transactions with Related Parties (Details 3) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Due from affiliates
Deferred acquisition fees receivable	$ 19,684	$ 28,654
Current acquisition fees receivable	4,149	0
Reimbursable costs	334	1,457
Organization and offering costs	2,700	4,920
Accounts receivable	3,716	182
Asset management fee receivable	1,451	789
Due from affiliates	$ 32,034	$ 36,002