Debt - Debt Summary (Parenthetical) (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Weighted Average Interest Rate	2.90%	2.50%
Debt	$ 28,129,473	$ 23,875,961
Percentage of outstanding debt	100.00%	100.00%
GBP
Debt Instrument [Line Items]
Weighted Average Interest Rate	2.10%	2.10%
Debt	$ 1,293,757	$ 1,228,483
Percentage of outstanding debt	4.60%	5.10%
CAD
Debt Instrument [Line Items]
Weighted Average Interest Rate	4.90%	4.50%
Debt	$ 830,034	$ 814,491
Percentage of outstanding debt	2.90%	3.40%
EUR
Debt Instrument [Line Items]
Weighted Average Interest Rate	2.00%	1.30%
Debt	$ 9,891,790	$ 7,991,301
Percentage of outstanding debt	35.20%	33.50%
JPY
Debt Instrument [Line Items]
Weighted Average Interest Rate	1.00%	1.00%
Debt	$ 3,034,906	$ 3,308,009
Percentage of outstanding debt	10.80%	13.90%
USD
Debt Instrument [Line Items]
Weighted Average Interest Rate	4.00%	3.60%
Debt	$ 13,078,986	$ 10,533,677
Percentage of outstanding debt	46.50%	44.10%