Related Party Transactions and Arrangements (General and Administrative Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity Awards [Member]
Related Party Transaction [Line Items]
General and administrative expenses			$ 92,300
Affiliates of Former Manager [Member]
Related Party Transaction [Line Items]
General and administrative expenses	$ 0	$ 16,089	103,206
Affiliates of Former Manager [Member] | Advisory Fees And Reimbursements [Member]
Related Party Transaction [Line Items]
General and administrative expenses	0	2,015	5,602
Affiliates of Former Manager [Member] | Equity Awards [Member]
Related Party Transaction [Line Items]
General and administrative expenses	$ 0	$ 14,074	$ 97,604