Derivative Financial Instruments - Fair Value of Derivative Instruments (Detail) - Derivatives Not Designated as Hedging Instruments [Member] - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 14,692	$ 30,181
Other Assets [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives	14,692	30,181
Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	14,692	30,181
Other Liabilities [Member] | Interest Rate Swaps [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 14,692	$ 30,181