Subsequent Events (Details) (Subsequent Event, USD $)
0 Months Ended
Apr. 23, 2014
Apr. 09, 2014
Apr. 15, 2014
Subsequent Event
     
Subsequent Event [Line Items]      
Exchange offer amount   $ 912,400,000  
Minimum tender amount   98.00%  
Maximum proceeds from sale of common stock     350,000,000
Sales agent commission, minimum     2.00%
Shares sold during period 1,574,320    
Proceeds from sale of common stock 16,800,000    
Weighted average share price (in dollars per share) $ 10.70    
Proceeds from sale of common stock, net after sales agent commission $ 16,600,000