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Long-Term Debt - Narrative (Details)		1 Months Ended	9 Months Ended
	Jan. 31, 2020	Apr. 30, 2018 USD ($)	Sep. 26, 2020 USD ($)	Oct. 02, 2020 USD ($)	Feb. 28, 2020 USD ($)	Dec. 28, 2019 USD ($)
Line of credit | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 600,000,000
Line of credit facility, additional borrowing capacity under uncommitted accordion feature		$ 150,000,000
Consecutive business days, cash dominion event	5 days	3 days
Long-term line of credit facility			$ 263,000,000.0			$ 326,500,000
Line of credit facility, remaining borrowing capacity			202,100,000			80,000,000.0
Outstanding principal balance			262,975,000			326,496,000
Term Loan Facility | Secured debt
Debt Instrument [Line Items]
Face amount		$ 180,000,000
Quarterly term loan principal payments			402,282
Maximum principal balance					$ 45,000,000
Outstanding principal balance			$ 57,813,000			$ 146,674,000
Term Loan Facility | Secured debt | Subsequent event
Debt Instrument [Line Items]
Outstanding principal balance				$ 44,400,000
Debt Covenant, Period 1 | Maximum | Term Loan Facility | Secured debt
Debt Instrument [Line Items]
Net leverage ratio			8.75
LIBOR | Minimum | Line of credit | Revolving Credit Facility
Debt Instrument [Line Items]
Variable rate			1.75%
LIBOR | Maximum | Line of credit | Revolving Credit Facility
Debt Instrument [Line Items]
Variable rate			2.25%
Base Rate | Term Loan Facility | Secured debt
Debt Instrument [Line Items]
Variable rate			6.00%
Base Rate | Minimum | Line of credit | Revolving Credit Facility
Debt Instrument [Line Items]
Variable rate			0.75%
Base Rate | Minimum | Term Loan Facility | Secured debt
Debt Instrument [Line Items]
Variable rate			2.00%
Base Rate | Maximum | Line of credit | Revolving Credit Facility
Debt Instrument [Line Items]
Variable rate			1.25%
Fed Funds Rate | Term Loan Facility | Secured debt
Debt Instrument [Line Items]
Variable rate			0.50%
Eurodollar | Term Loan Facility | Secured debt
Debt Instrument [Line Items]
Variable rate			7.00%
Eurodollar | Minimum | Term Loan Facility | Secured debt
Debt Instrument [Line Items]
Variable rate			1.00%

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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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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Face (par) amount of debt instrument at time of issuance.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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