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Long Term Debt - Term Loan Agreement - Additional Information (Detail) - Term Loan Agreement - USD ($) |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 24, 2020 | Dec. 16, 2019 | Aug. 22, 2019 | Dec. 31, 2020
Debt Instrument [Line Items] |  |  |  |
Credit agreement date |  |  |  | Aug. 22, 2019
Credit facility, maximum borrowing capacity |  |  | $ 150,000,000 |
Debt maturity date |  |  | Jun. 10, 2022 |
Percentage of net cash proceeds from issuance of new senior indebtedness |  |  |  | 100.00%
Subject To Customary Conditions |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Credit facility, maximum borrowing capacity |  |  | $ 225,000,000 |
Credit facility, additional borrowing capacity |  |  | $ 75,000,000 |
Repayments of borrowings | $ 50,000,000 | $ 50,000,000 |  |
Term Loan, amount outstanding |  |  |  | $ 50,000,000
Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt service coverage ratio |  |  |  | 150.00%
Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt to capitalization ratio, percentage the Company must not exceed at any time |  |  |  | 50.00%
Base Rate |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  | 0.375%
Base Rate | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  | 0.00%
Base Rate | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  | 0.375%
London Interbank Offered Rate (LIBOR) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  | 1.375%
London Interbank Offered Rate (LIBOR) | Subject To Customary Conditions |  |  |  |
Debt Instrument [Line Items] |  |  |  |
LIBOR-based interest rate |  |  |  | 1.52%
London Interbank Offered Rate (LIBOR) | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  | 1.00%
London Interbank Offered Rate (LIBOR) | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, basis spread on variable rate |  |  |  | 1.375%

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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