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Mortgage Notes Payable and Credit Facility - Company's Mortgage Notes Payable and Line of Credit (Detail) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Oct. 27, 2017 | Dec. 31, 2021 USD ($) mortgage property | Dec. 31, 2020 USD ($)
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 127 |
Long-term debt |  | $ 707,526 | $ 669,280
Weighted average interest rate on debt outstanding |  | 3.39% |
Mortgage notes payable |  |  |
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 67 |
Carrying value |  | $ 452,868 |
Premiums and discounts, net |  | (130) | (182)
Deferred financing costs, net |  | (2,794) | (3,479)
Long-term debt |  | $ 449,944 | 456,177
Number of mortgage notes payable | mortgage |  | 52 |
Maturity date of mortgage notes payable, start date |  | Apr. 22, 2022 |
Maturity date of mortgage notes payable, end date |  | Aug. 01, 2037 |
Weighted average interest rate on debt outstanding |  | 4.18% |
Fixed rate mortgage loans |  |  |
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 61 |
Carrying value |  | $ 436,530 | 435,029
Stated interest rate |  | 4.91% |
Fixed rate mortgage loans | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate |  | 6.63% |
Fixed rate mortgage loans | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate |  | 2.80% |
Variable rate mortgage loans |  |  |
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 6 |
Carrying value |  | $ 16,338 | 24,809
Variable rate revolving credit facility |  |  |
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 60 |
Variable rate revolving credit facility | Revolving credit facility |  |  |
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 60 |
Carrying value |  | $ 33,550 | 53,900
Long-term debt |  | $ 33,550 | 53,900
Scheduled maturity dates |  | Jul. 02, 2023 |
Credit Facility |  |  |
Debt Instrument [Line Items] |  |  |
Deferred financing costs, net |  | $ (968) | (797)
Long-term debt |  | 224,032 | 159,203
Term loan facility |  |  |
Debt Instrument [Line Items] |  |  |
Carrying value |  | $ 160,000 | $ 160,000
Scheduled maturity dates |  | Jul. 02, 2024 |
New Term Loan Facility |  |  |
Debt Instrument [Line Items] |  |  |
Carrying value |  | $ 65,000 |
Scheduled maturity dates |  | Feb. 11, 2026 |
LIBOR |  |  |
Debt Instrument [Line Items] |  |  |
Spread on LIBOR | 2.75% |  |
LIBOR | Variable rate mortgage loans |  |  |
Debt Instrument [Line Items] |  |  |
Spread on LIBOR |  | 2.50% |
Variable rate at period end |  | 0.10% |
LIBOR | Variable rate mortgage loans | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Spread on LIBOR |  | 2.75% |
LIBOR | Variable rate mortgage loans | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Spread on LIBOR |  | 2.35% |
LIBOR | Variable rate revolving credit facility | Revolving credit facility |  |  |
Debt Instrument [Line Items] |  |  |
Spread on LIBOR |  | 1.90% |
LIBOR | Term loan facility |  |  |
Debt Instrument [Line Items] |  |  |
Spread on LIBOR |  | 1.85% |
LIBOR | New Term Loan Facility |  |  |
Debt Instrument [Line Items] |  |  |
Spread on LIBOR |  | 2.00% |

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