Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended
	Jun. 30, 2013		Jun. 07, 2013	Dec. 31, 2012
Class of Stock [Line Items]
Convertible preferred stock, issued	828,472			828,472
Limitation on the Issuance of Common Stock, Percent	19.90%
Common stock, Contingent Value Rights Issued			29,411,764
Common stock, issued	184,893,886			179,167,112
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Convertible preferred stock, issued			28,398,213
Issuance of common stock	$ 445,000,000	[1]
Percent of liquidation preference	102.00%
Value of liquidation preference	$ 15.67
Contingent Value Right, Cash Payment, Amount	2.00
Convertible Preferred Stock, Terms of Conversion	15.67
Private Placement [Member]
Class of Stock [Line Items]
Preferred Stock, Contingent Value Rights Issued			28,400,000
Private Placement [Member]
Class of Stock [Line Items]
Contingent Value Right, Cash Payment, Amount	$ 1.50
Sale of Stock, Price Per Share			$ 15.47
Maximum amount of additional shares allowed to be issued [Member]
Class of Stock [Line Items]
Common stock, issued			3,300,000

[1] The Series C Convertible Preferred Stock is mandatorily redeemable or exchangeable for shares of common stock at the option of the Company within three business days following the earliest to occur of (A) the closing of the CapLease Merger (B) the first trading day following (a) an announcement that CapLease has accepted a competing offer (which did not occur within the time specified in the CapLease Merger Agreement) or (b) the CapLease Merger Agreement is otherwise terminated, and (C) December 31, 2013, the Company will have the option to: (I) convert all shares of Series C Convertible Preferred Stock into such number of shares of the Company’s common stock equal to the par value of the Series C Convertible Preferred Stock divided by the lowest of (i) a 2% discount to the VWAP of the Company’s common stock for the 10 prior trading days, (ii) a 2% discount to the closing price on such date and (iii) $15.67, as adjusted from time to time or (II) redeem all shares of the Company’s Series C Convertible Preferred Stock in cash at 120% of its par value. As of June 30, 2013, the Company is limited, without the approval of holders of the Company's common stock and Series C Convertible Preferred Stock to amend the Series C Articles Supplementary, to issuing no more than 3.3 million shares of common stock upon conversion of shares of Series C Convertible Preferred Stock due to limitations imposed by the articles supplementary for the Series C Convertible Preferred Stock. Therefore, upon the required conversion the Company will cancel any remaining Series C Convertible Preferred Stock in exchange for cash in lieu of common stock in an amount equal to the greater of the product of such number of excess shares into which the shares of Series C stock would have been convertible and (i) 120% of the liquidation preference, which is $15.67, as may be adjusted from time to time, and (ii) the Conversion Price valued at the one-day VWAP of the common stock on the applicable date.