Derivative and Hedging Activities - Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Sep. 30, 2019 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Derivative [Line Items] | |||
| Accumulated other comprehensive loss | $ (8,654) | $ (11,461) | |
| Amount reclassified as an increase to interest expense related to terminated hedges of existing floating-rate debt within the next 12 months | 2,800 | ||
| Termination of interest rate swaps | $ 12,461 | ||
| Interest Rate Swap | |||
| Derivative [Line Items] | |||
| Accumulated other comprehensive loss | $ 8,700 | ||
| Designated as Hedging Instrument | Interest Rate Swap | |||
| Derivative [Line Items] | |||
| Termination of interest rate swaps | $ 12,500 | ||
| Deferred loss on termination of interest rate swaps | $ 12,300 | ||