Accounts Payable, Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Accounts payable and accrued expenses	$ 23,722	$ 34,457
Deferred federal income tax liability	38,627	35,269
Accrued interest payable	64,105	37,606
Lease discounts, net of amortization of $26,544 and $19,403, respectively	17,686	22,443
Derivative Liability	0	1,283
Total accounts payable, accrued expenses and other liabilities	144,140	131,058
Deferred Revenue, Leases, Accumulated Amortization	$ 26,544	$ 19,403