XML 72 R57.htm IDEA: XBRL DOCUMENT v3.19.2
Fair Value of Financial Instruments - Schedule of Interest Rate Swaps Outstanding (Detail) - Interest Rate Swaps [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]          
Aggregate Notional Amount $ 862,853   $ 862,853   $ 800,293
Gross Asset at Fair Value 1,517   1,517   12,159
Gross Liability at Fair Value 28,356   28,356   $ 1,089
Gross gains   $ 2,747 155 $ 12,410  
Gross losses $ 18,521 $ 1,170 $ 37,964 $ 1,205