Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Preferred Stock, par value (usd per share)	$ 0.01		$ 0.01
Preferred Stock, shares authorized (in shares)	50,000,000		50,000,000
Preferred Stock, dividend rate stated Percentage	7.75%		7.75%
Preferred stock, shares issued (in shares)	5,600,000		5,600,000
Preferred Stock, shares outstanding (in shares)	5,600,000		5,600,000
Preferred Stock, liquidation preference value	$ 140,000		$ 140,000
Common stock, par value (usd per share)	$ 0.01		$ 0.01
Common stock, shares authorized (in shares)	450,000,000		450,000,000
Common stock, shares issued (in shares)	123,094,376		124,510,246
Common stock, shares outstanding (in shares)	123,094,376		124,510,246
Total assets	21,426,240	[1]	20,350,979	[1]
Total liabilities	18,820,629	[1]	17,947,744	[1]
Variable Interest Entity, Primary Beneficiary
Total assets	2,322,093		1,819,295
Total liabilities	$ 2,022,948		$ 1,648,400

[1] The Company's consolidated balance sheets include assets of consolidated variable interest entities (“VIEs”) that can only be used to settle obligations and liabilities of the VIEs for which creditors do not have recourse to the primary beneficiary (IAS Asset I LLC, an indirect subsidiary of the Company). As of June 30, 2014 and December 31, 2013, total assets of the consolidated VIEs were $2,322,093 and $1,819,295, respectively, and total liabilities of the consolidated VIEs were $2,022,948 and $1,648,400, respectively. Refer to Note 3 - "Variable Interest Entities" for further discussion.