Derivative Instruments and Hedging Activities - Fair Value of Company's Derivative Financial Instruments Classification in Consolidated Balance Sheet (Detail) $ in Thousands	Dec. 31, 2019 USD ($)
Derivatives Fair Value [Line Items]
Interest rate swap agreements	$ 2,156
Other Liabilities [Member]
Derivatives Fair Value [Line Items]
Interest rate swap agreements	2,200
Interest Rate Swaps [Member] \| Other Liabilities [Member]
Derivatives Fair Value [Line Items]
Interest rate swap agreements	$ 2,156

Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

No definition available.

Name:	us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant