XML 57 R43.htm IDEA: XBRL DOCUMENT v3.20.2
LONG-TERM DEBT, NET - If-Converted Value in Excess of Principal (Details) - Senior Notes - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
2022 Exchangeable Notes    
Debt Instrument [Line Items]    
If-converted value in excess of principal $ 706.6 $ 329.6
2026 Exchangeable Notes    
Debt Instrument [Line Items]    
If-converted value in excess of principal 108.6  
2030 Exchangeable Notes    
Debt Instrument [Line Items]    
If-converted value in excess of principal $ 135.4