Derivative Instruments and Hedging Activity - Additional Information (Detail) - USD ($) $ in Millions				6 Months Ended
	Mar. 16, 2020	Jan. 30, 2020	Jun. 22, 2017	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net				$ 1.7
Interest rate swap agreement, effective date	Feb. 28, 2020	Dec. 31, 2019	Aug. 31, 2017
Interest rate swap agreement, end date	Feb. 28, 2025	Dec. 31, 2024	Aug. 31, 2022
Interest rate swap agreement for a notional amount	$ 100.0	$ 50.0	$ 50.0
Duration of LIBOR	1 month	1 month	1 month
Percentage of fixed rate	0.885%	1.50%	1.90%
Gain (loss) reclassification from accumulated OCI to income, estimate of time to transfer				12 months