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Financial Instruments and Fair Value Measurements - Schedule of Carrying Values Different from Estimated Fair Values (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Senior Notes $ 1,449,613 $ 1,647,963
Revolving Credit Facilities and term loan 234,635 104,460
Mortgage Indebtedness 249,260 94,874
Total indebtedness 1,933,508 1,847,297
Fair Value [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Senior Notes 1,549,866 1,744,581
Revolving Credit Facilities and term loan 235,000 105,084
Mortgage Indebtedness 250,624 96,276
Total indebtedness $ 2,035,490 $ 1,945,941