Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	Mar. 15, 2013	Jun. 30, 2013 Collateralized Debt Obligations [Member]		Dec. 31, 2012 Collateralized Debt Obligations [Member]
Company carrying value-assets	$ 8,492	$ 7,645	[1]	$ 1,913,353	[2]
Company carrying value - liabilities		0		2,374,516
Face value of assets held by the VIEs		2,325,820		2,469,856
Face value of liabilities issued by the VIEs		$ 2,094,501		$ 2,593,392

[1] Retained CDO Bonds were previously eliminated in consolidation.

[2] Collateralized debt obligations are a component of non-recourse liabilities of consolidated VIEs held for sale on the Condensed Consolidated Balance Sheets.