Mortgage Notes Payable and Credit Facility (Tables)
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9 Months Ended | 
Sep. 30, 2020  | 
| Debt Disclosure [Abstract] | 
 
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| Company's Mortgage Notes Payable and Line of Credit | 
 Our mortgage notes payable and Credit Facility as of September 30, 2020 and December 31, 2019 are summarized below (dollars in thousands): 
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Encumbered properties at | 
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Carrying Value at | 
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Stated Interest Rates at | 
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Scheduled Maturity Dates at | 
 
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September 30, 2020 | 
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September 30, 2020 | 
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December 31, 2019 | 
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September 30, 2020 | 
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September 30, 2020 | 
 
| Mortgage and other secured loans: | 
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| Fixed rate mortgage loans | 
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61  | 
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$ | 
433,840  | 
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$ | 
412,771  | 
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(1) | 
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(2) | 
 
| Variable rate mortgage loans | 
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8  | 
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28,270  | 
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45,151  | 
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(3) | 
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(2) | 
 
| Premiums and discounts, net | 
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- | 
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(196) | 
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(239) | 
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N/A | 
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N/A | 
 
| Deferred financing costs, mortgage loans, net | 
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- | 
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(3,550) | 
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(3,944) | 
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N/A | 
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N/A | 
 
| Total mortgage notes payable, net | 
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69  | 
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$ | 
458,364  | 
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$ | 
453,739  | 
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(4) | 
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| Variable rate revolving credit facility | 
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51  | 
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(6) | 
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$ | 
43,800  | 
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$ | 
52,400  | 
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LIBOR + 1.65%  | 
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7/2/2023 | 
 
| Deferred financing costs, revolving credit facility | 
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- | 
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(651) | 
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(821) | 
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N/A | 
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N/A | 
 
| Total revolver, net | 
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51  | 
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$ | 
43,149  | 
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$ | 
51,579  | 
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| Variable rate term loan facility | 
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- | 
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(6) | 
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$ | 
160,000  | 
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$ | 
122,300  | 
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LIBOR + 1.60%  | 
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7/2/2024 | 
 
| Deferred financing costs, term loan facility | 
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- | 
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(854) | 
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(1,024) | 
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N/A | 
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N/A | 
 
| Total term loan, net | 
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N/A | 
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$ | 
159,146  | 
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$ | 
121,276  | 
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| Total mortgage notes payable and credit facility | 
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120  | 
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$ | 
660,659  | 
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$ | 
626,594  | 
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(5) | 
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(1)Interest rates on our fixed rate mortgage notes payable vary from 2.80% to 6.63%.
 
(2)We have 54 mortgage notes payable with maturity dates ranging from 12/1/2020 through 8/1/2037.
 
(3)Interest rates on our variable rate mortgage notes payable vary from one month LIBOR + 2.25% to one month LIBOR + 2.75%. As of September 30, 2020, one month LIBOR was approximately 0.15%.
 
(4)The weighted average interest rate on the mortgage notes outstanding as of September 30, 2020 was approximately 4.28%.
 
(5)The weighted average interest rate on all debt outstanding as of September 30, 2020 was approximately 3.51%.
 
(6)The amount we may draw under our Credit Facility is based on a percentage of the fair value of a combined pool of 51 unencumbered properties as of September 30, 2020. 
 
     N/A - Not Applicable 
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| Summary of Long-Term Mortgages | 
 During the nine months ended September 30, 2020, we repaid four mortgages, collateralized by five properties, which are summarized in the table below (dollars in thousands): 
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| Aggregate Fixed Rate Debt Repaid | 
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Interest Rate on Fixed Rate Debt Repaid | 
 
| $ | 
5,918  | 
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6.00% | 
 
  
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| Aggregate Variable Rate Debt Repaid | 
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Weighted Average Interest Rate on Variable Rate Debt Repaid | 
 
| $ | 
16,107  | 
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LIBOR + | 
2.19% | 
 
  
  
During the nine months ended September 30, 2020, we issued four mortgages, collateralized by four properties, which are summarized in the table below (dollars in thousands):  
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| Aggregate Fixed Rate Debt Issued  | 
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Weighted Average Interest Rate on Fixed Rate Debt | 
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| $ | 
35,855  | 
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(1) | 
3.22% | 
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  (1)We issued $18.3 million of fixed rate debt in connection with the three-property portfolio acquired on January 27, 2020 with a maturity date of February 1, 2030. The interest rate is fixed at 3.625%. On March 9, 2020, we issued $17.5 million of floating rate debt swapped to fixed rate debt of 2.8% in connection with the one property acquisition.
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| Schedule of Principal Payments of Mortgage Notes Payable | 
 Scheduled principal payments of mortgage notes payable for the three months ending December 31, 2020, and each of the five succeeding years and thereafter are as follows (dollars in thousands): 
  
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| Year | 
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Scheduled Principal Payments | 
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| Three Months Ending December 31, 2020 | 
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$ | 
6,013  | 
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| 2021 | 
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33,555  | 
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| 2022 | 
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107,719  | 
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| 2023 | 
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72,063  | 
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| 2024 | 
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49,178  | 
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| 2025 | 
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37,118  | 
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| Thereafter | 
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156,464  | 
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| Total | 
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$ | 
462,110  | 
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(1) | 
 
  
  
(1)This figure does not include $0.2 million of premiums and discounts, net, and $3.5 million of deferred financing costs, which are reflected in mortgage notes payable, net on the condensed consolidated balance sheets.
 
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| Summary of Interest Rate Cap Agreement | 
The following table summarizes the interest rate caps at September 30, 2020 and December 31, 2019 (dollars in thousands):   
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September 30, 2020 | 
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December 31, 2019 | 
 
| Aggregate Cost | 
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Aggregate Notional Amount | 
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Aggregate Fair Value | 
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Aggregate Notional Amount | 
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Aggregate Fair Value | 
 
| $ | 
1,537  | 
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(1) | 
$ | 
187,490  | 
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$ | 
17  | 
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$ | 
166,728  | 
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$ | 
250  | 
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(1)We have entered into various interest rate cap agreements on variable rate debt with LIBOR caps ranging from 1.50% to 3.00%.
 The following table summarizes our interest rate swaps at September 30, 2020 and December 31, 2019 (dollars in thousands):
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| September 30, 2020 | 
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December 31, 2019 | 
 
| Aggregate Notional Amount | 
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Aggregate Fair Value Asset | 
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Aggregate Fair Value Liability  | 
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Aggregate Notional Amount | 
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Aggregate Fair Value Asset | 
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Aggregate Fair Value Liability  | 
 
| $ | 
62,696  | 
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$ | 
—  | 
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$ | 
(3,575) | 
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$ | 
45,777  | 
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$ | 
—  | 
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$ | 
(1,173) | 
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| Schedule of Derivative Instruments | 
 The following tables present the impact of our derivative instruments in the condensed consolidated financial statements (dollars in thousands): 
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Amount of loss recognized in Comprehensive Income | 
 
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Three Months Ended September 30, | 
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Nine Months Ended September 30, | 
 
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2020 | 
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2019 | 
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2020 | 
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2019 | 
 
| Derivatives in cash flow hedging relationships | 
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| Interest rate caps | 
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$ | 
(25) | 
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$ | 
(187) | 
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$ | 
(332) | 
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$ | 
(671) | 
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| Interest rate swaps | 
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301  | 
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(437) | 
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(2,401) | 
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(1,664) | 
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| Total | 
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$ | 
276  | 
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$ | 
(624) | 
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$ | 
(2,733) | 
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$ | 
(2,335) | 
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The following table sets forth certain information regarding our derivative instruments (dollars in thousands): 
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Asset (Liability) Derivatives Fair Value at | 
 
| Derivatives Designated as Hedging Instruments | 
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Balance Sheet Location | 
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September 30, 2020 | 
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December 31, 2019 | 
 
| Interest rate caps | 
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Other assets | 
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$ | 
17  | 
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$ | 
250  | 
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| Interest rate swaps | 
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Other liabilities | 
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(3,575) | 
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(1,173) | 
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| Total derivative liabilities, net | 
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$ | 
(3,558) | 
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$ | 
(923) | 
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