XML 52 R41.htm IDEA: XBRL DOCUMENT v3.20.2
LONG-TERM DEBT (Components of Long-Term Debt) (Details) - USD ($)
$ in Thousands
Oct. 31, 2020
Aug. 07, 2020
Apr. 30, 2020
Oct. 31, 2019
Debt Instrument [Line Items]        
Committed line of credit borrowings $ 70,000   $ 2,000,000 $ 135,000
Debt issuance costs and discounts (10,907)   (4,743) (6,050)
Long-term debt including current portion 1,559,093   3,495,257 1,628,950
Less: Current portion 0   (649,384) (648,651)
Long-term debt and line of credit borrowings $ 1,559,093   2,845,873 980,299
Senior Notes | Senior Notes, 4.125%, due October 2020        
Debt Instrument [Line Items]        
Interest rate 4.125%      
Senior notes $ 0   650,000 650,000
Senior Notes | Senior Notes, 5.500%, due November 2022        
Debt Instrument [Line Items]        
Interest rate 5.50%      
Senior notes $ 500,000   500,000 500,000
Senior Notes | Senior Notes, 5.250%, due October 2025        
Debt Instrument [Line Items]        
Interest rate 5.25%      
Senior notes $ 350,000   350,000 350,000
Senior Notes | Senior Notes, 3.875%, due August 2030        
Debt Instrument [Line Items]        
Interest rate 3.875% 3.875%    
Senior notes $ 650,000   $ 0 $ 0