Derivative and Hedging Activities - Narrative (Details) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2018
USD ($)
|
Dec. 31, 2017
USD ($)
|
Dec. 31, 2016
USD ($)
|
Jun. 30, 2016
Derivative
|
|
| Derivative [Line Items] | ||||
| Payments to terminate interest rate swap | $ 0 | $ 0 | $ 1,724 | |
| General and Administrative Expense | ||||
| Derivative [Line Items] | ||||
| Loss recognized to terminate derivative | $ 0 | $ 1,706 | ||
| Interest Rate Swap | Accounts Payable Accruals And Other Liabilities | Designated as Hedging Instrument | ||||
| Derivative [Line Items] | ||||
| Number of variable rate debt obligations repaid during period | Derivative | 8 | |||