Derivative and Hedging Activities - Summary of Amounts Recorded in AOCL and Gain (Loss) Recorded in Operations when Reclassified out of AOCL or Recognized in Earnings (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Interest expense | $ 26,611 | $ 23,053 |
| Amount reclassified as an increase to interest expense related to active hedges of existing floating-rate debt within the next 12 months | 1,700 | |
| Interest Rate Swap | ||
| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Gross Amount of Loss Recognized in AOCL on Derivatives | 5,229 | |
| Interest Expense | Interest Rate Swap | ||
| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Amount of Loss Reclassified from AOCL to Interest (1) | $ 208 | |