Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.5.0.2
Subsequent Events (Details) - Convertible Notes - Notes Due February 1, 2033
1 Months Ended 3 Months Ended 9 Months Ended
Apr. 01, 2015
d
conversion_right
$ / shares
Jan. 30, 2013
$ / shares
Aug. 31, 2013
conversion_right
Sep. 30, 2016
d
conversion_right
$ / shares
Sep. 30, 2016
$ / shares
Debt Instrument [Line Items]          
Common stock trigger price (in dollars per share) $ 9.19     $ 9.19  
Convertible debt, threshold percentage of stock price trigger 130.00% 130.00%   130.00%  
Conversion price per share (in dollars per share) $ 7.07 $ 7.07   $ 7.07 $ 7.07
Number of trading days | d 20     20  
Number of consecutive trading days applicable conversion price 30 days     30 days  
Conversion right triggered | conversion_right 1   1 1  
Conversion rate 0.1414827 0.14148   0.1414827 0.1414827