Derivatives - Additional Information (Details)
$ in Thousands |
12 Months Ended |
|
|
|
|
Dec. 31, 2019
USD ($)
|
Dec. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
|
Sep. 30, 2017
USD ($)
|
Sep. 30, 2015
USD ($)
|
Jan. 31, 2014
USD ($)
|
| Derivative [Line Items] |
|
|
|
|
|
|
| Payments to Settle Derivative Instruments |
$ (3,149)
|
$ 0
|
$ 0
|
|
|
|
| Settlement Gain on Derivative Instruments |
0
|
$ 0
|
$ 1,896
|
|
|
|
| 2018 Treasury Locks |
|
|
|
|
|
|
| Derivative [Line Items] |
|
|
|
|
|
|
| Swaps, Number of Instruments Held |
|
2
|
|
|
|
|
| Derivative, Notional Amount |
|
$ 100,000
|
|
|
|
|
| Debt instrument, LIBOR Rate |
|
ten year U.S. Treasury
|
|
|
|
|
| Payments to Settle Derivative Instruments |
$ 3,149
|
|
|
|
|
|
| Swaps, Average Fixed Interest Rate |
|
2.93%
|
|
|
|
|
| 2014 Swaps |
|
|
|
|
|
|
| Derivative [Line Items] |
|
|
|
|
|
|
| Swaps, Number of Instruments Held |
|
|
|
|
|
4
|
| Derivative, Notional Amount |
|
|
|
|
|
$ 200,000
|
| Debt instrument, LIBOR Rate |
one month LIBOR
|
|
|
|
|
|
| Swaps, Average Fixed Interest Rate |
|
|
|
|
|
2.29%
|
| 2015 Swaps |
|
|
|
|
|
|
| Derivative [Line Items] |
|
|
|
|
|
|
| Swaps, Number of Instruments Held |
|
|
|
|
6
|
|
| Derivative, Notional Amount |
|
|
|
|
$ 260,000
|
|
| Debt instrument, LIBOR Rate |
one month LIBOR
|
|
|
|
|
|
| Swaps, Average Fixed Interest Rate |
|
|
|
|
1.79%
|
|
| 2017 Treasury Locks |
|
|
|
|
|
|
| Derivative [Line Items] |
|
|
|
|
|
|
| Swaps, Number of Instruments Held |
|
|
|
2
|
|
|
| Derivative, Notional Amount |
|
|
|
$ 100,000
|
|
|
| Debt instrument, LIBOR Rate |
|
|
ten year U.S. Treasury
|
|
|
|
| Swaps, Average Fixed Interest Rate |
|
|
|
2.18%
|
|
|
| Settlement Gain on Derivative Instruments |
|
|
$ 1,896
|
|
|
|