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Derivatives - Additional Information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2016 USD ($) Derivative
Derivative [Line Items]
Interest Expense	$ 13,678	$ 14,571
Estimated decrease in interest expense	105
Interest Rate Swaps
Derivative [Line Items]
Available for sale securities pledged for collateral	98,400		$ 30,000
Interest Rate Swaps \| Cash Flow Hedging
Derivative [Line Items]
Number of derivatives \| Derivative				2
Notional amount				$ 30,000
Average interest rate				1.10%
Interest Expense	$ 62	$ 124