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Share-Based Payments - Schedule of Current Stock Repurchase Program (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2014
Total Number of Shares Purchased 542,259,000 272,767
Average Price Paid per Share $ 11.25  
Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs 542,259,000  
March 9 to March 31 [Member]    
Total Number of Shares Purchased 33,600,000  
Average Price Paid per Share $ 12.02  
Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs 33,600,000  
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs $ 9,596  
April 1 to June 30 [Member]    
Total Number of Shares Purchased 330,515,000  
Average Price Paid per Share $ 11.25  
Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs 330,515,000  
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs $ 5,885  
July 1 to September 30 [Member]    
Total Number of Shares Purchased 91,965,000  
Average Price Paid per Share $ 11.16  
Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs 91,965,000  
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs $ 4,861  
October 1 to December 31 [Member]    
Total Number of Shares Purchased 86,179,000  
Average Price Paid per Share $ 11.00  
Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs 86,179,000  
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs $ 3,914