XML 70 R54.htm IDEA: XBRL DOCUMENT v3.19.2
Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Apr. 03, 2019
Mar. 31, 2019
Dec. 31, 2018
Aug. 09, 2018
Nov. 02, 2015
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]                  
Income tax (benefit) expense $ (3,253) $ 26 $ (3,214) $ 111          
Effective income tax rate 10.70% (0.10%) 6.14% (0.25%)          
Valuation allowance             $ 135,200    
Debt Instrument [Line Items]                  
Income tax (benefit) expense $ (3,253) $ 26 $ (3,214) $ 111          
Tax benefit expected to be recognized this fiscal year     2,300            
Convertible Senior Notes Due 2020                  
Debt Instrument [Line Items]                  
Debt instrument, stated interest rate               3.25%  
Convertible notes                  
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]                  
Income tax (benefit) expense 3,400   3,400            
Debt Instrument [Line Items]                  
Increase in taxes 5,700                
Income tax (benefit) expense $ 3,400   $ 3,400            
Convertible notes | Convertible Senior Notes Due 2020                  
Debt Instrument [Line Items]                  
Debt instrument, stated interest rate                 3.25%
Convertible notes | 5% Note                  
Debt Instrument [Line Items]                  
Debt instrument, stated interest rate         5.00% 5.00%