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Derivative Instruments and Hedging Activities (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) derivative | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |  |
Number of interest rate swap agreements | derivative | 4 |  |
Interest rate cap/swap agreements | $ 843 | $ (4,585) |
Interest rate cap/swap agreements |  |  | $ (4,424)
Derivatives, Fair Value [Line Items] |  |  |
Fair Value | $ (8,208) | (9,051) |
Interest rate swap |  |  |
Derivative Instruments and Hedging Activities Disclosure [Abstract] |  |  |
Number of interest rate swap agreements | derivative | 4 |  |
Level 2 | Interest rate cap |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Notional Amount | $ 300,000 |  |
LIBOR Rate | 4.00% |  |
Fair Value | $ 0 | 0 |
Level 2 | Interest rate swap |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Notional Amount | $ 400,000 |  |
LIBOR Rate | 2.85% |  |
Fair Value | $ (8,208) | $ (9,051) |

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