Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Narrative) (Details)

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Commitments and Contingencies (Narrative) (Details) (USD $)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Feb. 28, 2014
Favorable Regulatory Action [Member]
Business Acquisition [Line Items]      
Capital lease term 14 years    
Capital lease obligations $ 98,600,000    
Capital lease, amended term 7 years    
Net capital lease obligation adjustment 9,385,000 0  
Winning auction bid     $ 41,400,000