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Derivative Instruments and Hedging Activities (Details) | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Nov. 30, 2016 USD ($) | Dec. 31, 2021 USD ($) instrument | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2017 instrument | Dec. 31, 2016 instrument | Oct. 31, 2016 USD ($)
Derivative [Line Items] |  |  |  |  |  |  |
Unsecured debt, net |  | $ 5,307,196,000 | $ 5,607,985,000 |  |  |  |
Hedge ineffectiveness related to cash flow hedges |  | 9,170,000 | (4,148,000) | $ (2,948,000) |  |  |
Total return swap income |  | 10,774,000 | 10,733,000 | 8,446,000 |  |  |
Designated as Hedging Instrument |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Hedge ineffectiveness related to cash flow hedges |  | 0 | 0 | (200,000) |  |  |
Not Designated as Hedging Instrument |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Total return swap income |  | $ 10,800,000 | 10,700,000 | $ 8,400,000 |  |  |
Interest Rate Swap | Designated as Hedging Instrument |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Number of derivative instruments held | instrument |  | 5 |  |  | 1 | 4 |
Derivative fair value |  | $ 0 | 2,400,000 |  |  |  |
Aggregate carrying value of the interest rate swap contracts |  | 0 |  |  |  |  |
Interest Rate Cap | Not Designated as Hedging Instrument |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Derivative notional amount |  | 0 | 0 |  |  |  |
Derivative fair value |  | $ 0 | 0 |  |  |  |
Total Return Swap Callable | Not Designated as Hedging Instrument |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Number of derivative instruments held | instrument |  | 4 |  |  |  |  |
Total Return Swap | Not Designated as Hedging Instrument |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Derivative fair value |  | $ 0 | 0 |  |  |  |
Variable Rate Term Loan |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Unsecured debt, net | $ 350,000,000 | 0 | $ 550,000,000 |  |  |  | $ 225,000,000
Debt instrument, term | 5 years |  |  |  |  |  |
Basis spread on rate | 0.95% |  |  |  |  |  |
Variable Rate Term Loan | Interest Rate Swap | Designated as Hedging Instrument |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Derivative notional amount |  | 175,000,000 |  |  |  |  |
Variable rate mortgage notes payable |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Derivative notional amount |  | 224,400,000 |  |  |  |  |
Bond subject to interest rate caps |  | 224,400,000 |  |  |  |  |
Mortgage Notes Payable | Total Return Swap Callable | Not Designated as Hedging Instrument |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Derivative notional amount |  | $ 224,400,000 |  |  |  |  |

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