Long-Term Debt - Additional Information (Details) - USD ($)		3 Months Ended
	Jul. 13, 2018	Mar. 25, 2020	Mar. 27, 2019	Dec. 25, 2019
Debt Instrument [Line Items]
Derivative, Fixed Interest Rate		1.31%
Derivative, Variable Interest Rate		1.50%
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion		$ (39,000)
Revolver loan		141,500,000		$ 97,000,000
Proceeds from (Repayments of) Lines of Credit		44,500,000	$ 3,000,000
Repayments of Lines of Credit		8,000,000	$ 3,000,000
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months		0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		$ 1,459,000
Senior Secured Revolving Credit Facility | Credit Agreement Two Thousand Eighteen
Debt Instrument [Line Items]
Senior secured revolving facility	$ 150,000,000
Senior secured revolving facility term	5 years
Revolving credit facility maturity period		Jul. 13, 2023
Debt instrument basis percentage		1.00%
Letters of credit outstanding		$ 8,400,000
Revolver loan		141,500,000
Amount of borrowings available		100,000
Principal payments prior to maturity		$ 0
Senior Secured Revolving Credit Facility | Credit Agreement Two Thousand Eighteen | Minimum
Debt Instrument [Line Items]
Debt instrument, interest rate		3.11%	3.96%
Senior Secured Revolving Credit Facility | Credit Agreement Two Thousand Eighteen | Maximum
Debt Instrument [Line Items]
Debt instrument, interest rate		3.29%	4.01%
Senior Secured Revolving Credit Facility | Credit Agreement Two Thousand Eighteen | Federal Funds Rate
Debt Instrument [Line Items]
Debt instrument basis percentage		0.50%
Senior Secured Revolving Credit Facility | Credit Agreement Two Thousand Eighteen | LIBOR | Minimum
Debt Instrument [Line Items]
Debt instrument basis percentage		1.25%
Senior Secured Revolving Credit Facility | Credit Agreement Two Thousand Eighteen | LIBOR | Maximum
Debt Instrument [Line Items]
Debt instrument basis percentage		2.25%
Senior Secured Revolving Credit Facility | Credit Agreement Two Thousand Eighteen | Base Rate | Minimum
Debt Instrument [Line Items]
Debt instrument basis percentage		0.25%
Senior Secured Revolving Credit Facility | Credit Agreement Two Thousand Eighteen | Base Rate | Maximum
Debt Instrument [Line Items]
Debt instrument basis percentage		1.25%
Senior Secured Revolving Credit Facility | Credit Agreement Two Thousand Eighteen | Letter of Credit
Debt Instrument [Line Items]
Sub limit of revolving facility	$ 15,000,000
Senior Secured Revolving Credit Facility | Credit Agreement Two Thousand Eighteen | Swing Line Loans
Debt Instrument [Line Items]
Sub limit of revolving facility	$ 15,000,000
Interest Rate Swap [Member]
Debt Instrument [Line Items]
Derivative Asset, Notional Amount		$ 40,000,000		$ 40,000,000
Interest Expense, Debt		429,000	$ 0
Interest Income, Other		(39,000)	0
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion		(39,000)	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax		1,459,000	0
Interest Income (Expense), Net		$ 390,000	$ 0