Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis by Level within Fair Value Hierarchy (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Interest rate swap asset	$ 0	$ 766
Interest Rate Swap Liability	(20,869)	(8,488)
Total Fair Value
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Interest rate swap asset	0	766
Interest Rate Swap Liability	(20,869)	(8,488)
Quoted Price in Active Markets for Identical Assets and Liabilities (Level 1)
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Interest rate swap asset	0	0
Interest Rate Swap Liability	0	0
Significant Other Observable Inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Interest rate swap asset	0	766
Interest Rate Swap Liability	(20,869)	(8,488)
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Interest rate swap asset	0	0
Interest Rate Swap Liability	$ 0	$ 0