XML 65 R49.htm IDEA: XBRL DOCUMENT v3.19.2
Debt - Narrative (Details)
3 Months Ended 6 Months Ended
May 28, 2019
USD ($)
$ / shares
Jun. 30, 2019
USD ($)
Jun. 30, 2019
USD ($)
Debt Instrument [Line Items]      
Interest expense   $ 1,000,000 $ 1,000,000
Convertible Senior Notes | 4% Convertible Senior Dotes due 2024      
Debt Instrument [Line Items]      
Stated interest rate 4.00% 4.00% 4.00%
Aggregate principal amount of debt $ 207,000,000    
Net proceeds 200,000,000    
Debt issuance costs $ 7,000,000    
Amortization period of interest expense 5 years    
Conversion ratio 0.0448179    
Initial conversion price | $ / shares $ 22.3125    
Threshold percentage of stock price trigger 130.00%    
Redemption price 100.00%    
Effective interest rate   10.00% 10.00%
Equity component of notes   $ 46,000,000 $ 46,000,000
Convertible debt fair value   $ 156,000,000 $ 156,000,000
Maximum | Convertible Senior Notes | 4% Convertible Senior Dotes due 2024      
Debt Instrument [Line Items]      
Conversion ratio 0.0571428    
Term Loans      
Debt Instrument [Line Items]      
Stated interest rate 0.58%