Financial Instruments and Fair Value Measurements - Carrying Amounts and Estimated Fair Values of Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	$ 18,040,832	$ 17,715,054
Fair Value of Debt	15,494,291	17,915,994
Credit Facilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	612,267	491,393
Fair Value of Debt	612,267	491,429
Senior Notes [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	15,546,790	14,981,690
Fair Value of Debt	13,014,900	15,151,781
Term Loans and Unsecured Other [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	1,362,293	1,825,195
Fair Value of Debt	1,365,753	1,835,569
Secured Mortgage [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value of Debt	519,482	416,776
Fair Value of Debt	$ 501,371	$ 437,215