Financial Instruments and Fair Value Measurements - Carrying Amounts and Estimated Fair Values of Debt (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	$ 27,578,197	$ 23,875,961
Fair Value of Debt	23,683,588	20,655,930
Credit Facilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	212,748	1,538,461
Fair Value of Debt	212,748	1,538,461
Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	24,741,952	19,786,253
Fair Value of Debt	20,891,413	16,604,241
Term Loans and Unsecured Other [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	2,253,857	2,106,592
Fair Value of Debt	2,239,280	2,092,264
Secured Mortgage [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	369,640	444,655
Fair Value of Debt	$ 340,147	$ 420,964