XML 97 R83.htm IDEA: XBRL DOCUMENT v3.23.1
Convertible Senior Notes - 2020 Notes-Convertible Bond Hedge and Warrant Transactions (Detail) - Convertible Senior Notes Due 2020 [Member] - shares
1 Months Ended 12 Months Ended
Jul. 31, 2020
May 31, 2020
Jan. 30, 2021
Debt Instrument      
Shares issued upon conversion 1,116,718 14,927  
Convertible note bond hedges      
Debt Instrument      
Shares issued upon conversion     1,386,580