Quarterly report pursuant to Section 13 or 15(d)

Non-controlling Interests (Summary of the impact of the consolidated VIE) (Details)

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Non-controlling Interests (Summary of the impact of the consolidated VIE) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Variable Interest Entity [Line Items]  
Variable Interest Entity, Classification of Carrying Amount, Assets $ 16,546
Variable Interest Entity, Classification of Carrying Amount, Liabilities and Equity 16,546
Restricted Cash [Member]
 
Variable Interest Entity [Line Items]  
Variable Interest Entity, Classification of Carrying Amount, Assets 14,804
Construction in Progress [Member]
 
Variable Interest Entity [Line Items]  
Variable Interest Entity, Classification of Carrying Amount, Assets 1,742
Noncontrolling Interest [Member]
 
Variable Interest Entity [Line Items]  
Variable Interest Entity, Classification of Carrying Amount, Liabilities and Equity 15,954
Retained Earnings [Member]
 
Variable Interest Entity [Line Items]  
Variable Interest Entity, Classification of Carrying Amount, Liabilities and Equity $ 592