Organization and Business Description - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended
	Aug. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Apr. 10, 2016
Organization And Summary Of Significant Accounting Policies [Line Items]
Distributions from taxable income		100.00%
Business acquisition expected completion description		Planned merger of the Company with Annaly Capital Management, Inc., a Maryland corporation (“Annaly”), which is expected to close by the end of the third quarter of 2016. The closing is subject to various conditions and regulatory approvals, including two-thirds of the outstanding shares of the Company’s common stock being validly tendered into the exchange offer, and therefore, the Company cannot provide any assurance that the merger will close in a timely manner or at all.
Effective date of acquisition	Aug. 31, 2015
Percentage of voting interest	100.00%
Purchase consideration, cash	$ 23,500
Purchase consideration, equity interest	$ 4,400
Net loss		$ 71,165	$ 34,535
Pingora Asset Management, LLC
Organization And Summary Of Significant Accounting Policies [Line Items]
Acquired operations generated other income		21,800
Net loss		$ 8,200
Subsequent Event | Annaly Capital Management Inc
Organization And Summary Of Significant Accounting Policies [Line Items]
Percentage of outstanding shares of common stock				0.6667%