Derivative Instruments and Hedging Activities - Additional Information (Detail) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives outstanding	$ 0
Interest Rate Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives outstanding	$ 0
Not Designated as Hedge Accounting Relationships [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives outstanding		$ 0