Impairment of Real Estate and Impairment of Unconsolidated Entities (Details 2) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended			11 Months Ended
	Jan. 31, 2013	Dec. 31, 2014		Dec. 31, 2013
Discounted cash flows [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair value	$ 10,500	84,738
Discount rate	10.00%
Indicative bids [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair value	83,193	38,750		734,240
Comparable property market analysis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Fair value				29,500
Minimum [Member] | Discounted cash flows [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Market capitalization rate		4.50%	[1]
Discount rate		6.00%	[1]
Minimum [Member] | Comparable property market analysis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Price per square foot				22
Maximum [Member] | Discounted cash flows [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Market capitalization rate		10.00%	[1]
Discount rate		12.00%	[1]
Maximum [Member] | Comparable property market analysis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Price per square foot				55

[1] Weighted average market capitalization and discount rates are 6.7% and 8.6%, respectively.