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Derivative and Hedging Activities - Additional Information (Detail)
3 Months Ended 9 Months Ended
Sep. 30, 2020
USD ($)
Swap
Sep. 30, 2020
USD ($)
Swap
Sep. 30, 2019
USD ($)
Term Loan [Member]      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Number of swaps | Swap 2 2  
Designated as Hedging Instrument [Member]      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Cash Flow Hedge Gain (Loss) to be Reclassified   $ 0 $ 0
Interest Expense [Member]      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Amortization of unrealized loss $ 600,000 600,000  
Interest Rate Swap [Member]      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Unrealized loss included in accumulated other comprehensive loss associated with the terminated swaps   12,900,000  
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Reclassification from accumulated other comprehensive income to interest expense   3,400,000  
Interest Rate Swap [Member] | Cash Flow Hedging [Member]      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Notional amount maturity date Apr. 15, 2030    
Aggregate cash payments on swap termination $ 17,800,000    
Unrealized loss included in accumulated other comprehensive loss associated with the terminated swaps 17,800,000    
Notional amount of derivative instruments $ 200,000,000.0 $ 200,000,000.0  
Interest rate of Derivative instruments 0.51% 0.51%