XML 59 R45.htm IDEA: XBRL DOCUMENT v3.20.2
Debt - Australian Term Loan Facility - Additional Information (Detail) - Term Loan [Member] - Bank of America, N.A - Australia [Member] - AUD ($)
Jun. 27, 2020
May 23, 2020
Jun. 30, 2020
Debt Instrument [Line Items]      
Maximum borrowing capacity   $ 1,200,000,000  
Debt instrument maturity date   May 23, 2024  
Debt instrument effective date Jul. 03, 2019    
Effective interest rate 1.20%    
Senior unsecured notes, interest rate     2.45%
Minimum [Member]      
Debt Instrument [Line Items]      
Applicable margin adjustable based on pricing grid, percentage   0.85%  
Maximum [Member]      
Debt Instrument [Line Items]      
Applicable margin adjustable based on pricing grid, percentage   1.65%  
Credit Rating      
Debt Instrument [Line Items]      
Variable interest rate     1.25%