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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, 2020 USD ($) property | Dec. 31, 2019 USD ($)
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 118 |
Long-term debt |  | $ 668,692 | $ 626,594
Mortgage notes payable |  |  |
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 68 |
Carrying value |  | $ 459,838 |
Premiums and discounts, net |  | (182) | (239)
Deferred financing costs, net |  | (3,479) | (3,944)
Long-term debt |  | $ 456,177 | 453,739
Fixed rate mortgage loans |  |  |
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 61 |
Carrying value |  | $ 435,029 | 412,771
Variable rate mortgage loans |  |  |
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 7 |
Carrying value |  | $ 24,809 | 45,151
Variable rate revolving credit facility |  |  |
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 50 |
Variable rate revolving credit facility | Revolving credit facility |  |  |
Debt Instrument [Line Items] |  |  |
Encumbered properties | property |  | 50 |
Carrying value |  | $ 53,900 | 52,400
Deferred financing costs, net |  | (588) | (821)
Long-term debt |  | $ 53,312 | 51,579
Scheduled maturity dates |  | Jul. 02, 2023 |
Variable rate term loan facility |  |  |
Debt Instrument [Line Items] |  |  |
Carrying value |  | $ 160,000 | 122,300
Scheduled maturity dates |  | Jul. 02, 2024 |
Term loan facility |  |  |
Debt Instrument [Line Items] |  |  |
Deferred financing costs, net |  | $ (797) | (1,024)
Long-term debt |  | $ 159,203 | $ 121,276
LIBOR |  |  |
Debt Instrument [Line Items] |  |  |
Spread on LIBOR (as percent) | 2.75% |  |
LIBOR | Variable rate revolving credit facility | Revolving credit facility |  |  |
Debt Instrument [Line Items] |  |  |
Spread on LIBOR (as percent) |  | 1.65% |
LIBOR | Variable rate term loan facility |  |  |
Debt Instrument [Line Items] |  |  |
Spread on LIBOR (as percent) |  | 1.60% |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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