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Long-Term Debt - Narrative (Details)	3 Months Ended
	Mar. 28, 2020 USD ($)	Sep. 26, 2020	Dec. 28, 2019 USD ($)	Apr. 30, 2018 USD ($)
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term line of credit facility	$ 381,600,000		$ 326,500,000
Line of credit facility, remaining borrowing capacity	$ 96,800,000		$ 80,000,000.0
Line of credit facility, interest rate at period end	3.20%		3.90%
Term Loan Facility | Secured Debt
Debt Instrument [Line Items]
Face amount				$ 180,000,000
Maximum principal balance	$ 45,000,000
Quarterly term loan principal payments	450,000
Long-term debt, gross	$ 77,400,000		$ 146,700,000
Stated interest rate	8.60%		8.70%
Maximum | Term Loan Facility | Secured Debt
Debt Instrument [Line Items]
Net leverage ratio	6.25
Maximum | Forecast | Term Loan Facility | Secured Debt
Debt Instrument [Line Items]
Net leverage ratio		8.75
LIBOR | Maximum | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Variable rate	2.25%
LIBOR | Minimum | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Variable rate	1.75%
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%
Base Rate | Term Loan Facility | Secured Debt
Debt Instrument [Line Items]
Variable rate	6.00%
Base Rate | Maximum | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Variable rate	1.25%
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%
Cedar Creek | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity				600,000,000
Line of credit facility, additional borrowing capacity under uncommitted accordion feature				$ 150,000,000

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Debt Instrument, Covenant Compliance, Maximum Principal Balance

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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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Contractual interest rate for funds borrowed, under the debt agreement.

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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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The effective interest rate at the end of the reporting period.

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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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Indebtedness divided by net capital.

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