Annual report pursuant to Section 13 and 15(d)

Debt - Inputs Used In Lattice Model (Details)

v3.3.1.900
Debt - Inputs Used In Lattice Model (Details) - Notes - Notes Due February 1, 2033 - $ / shares
1 Months Ended 12 Months Ended
Aug. 30, 2013
Jan. 31, 2013
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Apr. 01, 2015
Debt Instrument [Line Items]            
Stock price     $ 10.05 $ 9.99 $ 8.44  
Conversion Rate 14148.00% 14148.27% 14148.27% 14148.27% 14148.27%  
Conversion Price   $ 7.07 $ 7.07 $ 7.07 $ 7.07 $ 7.07
Maturity date     Feb. 01, 2033 Feb. 01, 2033 Feb. 01, 2033  
Risk-free interest rate     1.33% 1.40% 1.78%  
Estimated stock volatility     50.00% 39.00% 55.00%  
Estimated credit spread     11.42% 10.81% 8.28%