Financial Instruments and Fair Value Measurements - Carrying Amounts and Estimated Fair Values of Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	$ 28,129,473	$ 23,875,961
Fair Value of Debt	24,871,927	20,655,930
Credit Facilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	629,512	1,538,461
Fair Value of Debt	629,527	1,538,461
Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	25,073,147	19,786,253
Fair Value of Debt	21,860,652	16,604,241
Term Loans and Unsecured Other [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	2,058,732	2,106,592
Fair Value of Debt	2,040,084	2,092,264
Secured Mortgage [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	368,082	444,655
Fair Value of Debt	$ 341,664	$ 420,964