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Long-term Debt (Details)	Dec. 24, 2018 USD ($)	Dec. 31, 2020 USD ($)	Sep. 29, 2020 USD ($)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Capitalized deferred financing costs	$ 400,000
Credit facility
Debt Instrument [Line Items]
EBITDA to interest expense ratio	3.0
Funded indebtedness to EBITDA ratio	3.5
Annual decrease in required leverage ratio	0.25
Required leverage ratio	2.5
Floor plus 20% of the sum of the combined outstanding principal amounts	$ 20,000,000.0
Acquisition purchase price floor for 0.5 increase in required leverage ratio for 12 month period following the close date	$ 20,000,000.0
Capitalized deferred financing costs				$ 400,000
Credit facility | Federal funds rate | Minimum
Debt Instrument [Line Items]
Variable rate, basis spread percent	0.50%
Credit facility | Federal funds rate | Maximum
Debt Instrument [Line Items]
Variable rate, basis spread percent	1.00%
Credit facility | LIBOR | Minimum
Debt Instrument [Line Items]
Variable rate, basis spread percent	1.50%
Credit facility | LIBOR | Maximum
Debt Instrument [Line Items]
Variable rate, basis spread percent	2.00%
Credit facility | Term loan
Debt Instrument [Line Items]
Principal amounts due under Term Loan		$ 0	$ 48,100,000	48,750,000
Capitalized deferred financing costs	$ 200,000			200,000
Credit facility | Revolving credit facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 50,000,000.0
Commitment fee percentage	0.25%
Commitment fee, usage threshold for 37.5 basis points commitment fee, percentage	$ 30,000,000.0
Unused capacity, commitment fee percentage	0.375%
Principal amounts due under Term Loan			$ 49,100,000
Capitalized deferred financing costs	$ 200,000
Other assets
Debt Instrument [Line Items]
Capitalized deferred financing costs				$ 300,000

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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.

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