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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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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Long-Term Debt - Narrative (Details) - USD ($)				3 Months Ended	12 Months Ended
Long-Term Debt - Narrative (Details) - USD ($)	Nov. 17, 2020	Jul. 15, 2020	Aug. 07, 2018	Jan. 03, 2021	Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018
Debt Instrument [Line Items]
Payments of debt issuance costs					$ 7,896,000	$ 0	$ 8,806,000
Total debt, net				$ 576,570,000	576,570,000	596,200,000
Unamortized debt issuance costs, recorded as reduction of long-term debt, net				8,645,000	8,645,000	6,316,000
Proceeds from issuance of Senior Notes due 2028					300,000,000	0	0
Repayments of term loan borrowing					304,425,000	24,028,000	14,162,000
Repayments of revolving loan borrowing					131,024,000	87,664,000	64,504,000
Syndicated Facility Agreement
Debt Instrument [Line Items]
Payments of debt issuance costs	$ 900,000	$ 1,500,000	$ 8,800,000
Interest Rate Floor Minimum		0.00%
Interest Rate Floor Maximum		0.75%
Interest Rate Floor	0.00%
Revolving loan facility, maximum borrowing capacity				300,000,000.0	300,000,000.0
Revolving loan facility, remaining borrowing capacity				295,400,000	295,400,000
Threshold of other indebtedness triggering default				$ 20,000,000	$ 20,000,000
Maximum percentage of first tier subsidiary stock pledged as collateral				65.00%	65.00%
Letters of credit, outstanding				$ 1,600,000	$ 1,600,000	$ 2,200,000
Weighted average interest rate on borrowings outstanding				1.89%	1.89%	3.06%
Unamortized debt issuance costs, revolving loan facility, net				$ 2,000,000.0	$ 2,000,000.0	$ 1,300,000
Loss on Extinguishment of Debt	$ 3,600,000			3,600,000
Syndicated Facility Agreement \| Minimum
Debt Instrument [Line Items]
Revolving loan facility, interest rate					0.25%
Revolving loan facility, commitment fee percentage of unused capacity					0.20%
Syndicated Facility Agreement \| Maximum
Debt Instrument [Line Items]
Revolving loan facility, interest rate					2.00%
Revolving loan facility, commitment fee percentage of unused capacity					0.40%
Syndicated Facility Agreement \| LIBOR \| Minimum
Debt Instrument [Line Items]
Revolving loan facility, basis spread on variable rate					1.25%
Syndicated Facility Agreement \| LIBOR \| Maximum
Debt Instrument [Line Items]
Revolving loan facility, basis spread on variable rate					3.00%
Syndicated Facility Agreement \| For Each Fiscal Quarter Thereafter
Debt Instrument [Line Items]
Maximum consolidated net leverage ratio					3.00
Minimum consolidated interest coverage ratio					2.25
Syndicated Facility Agreement \| Term Loan
Debt Instrument [Line Items]
Payments of debt issuance costs	100,000	$ 1,000,000.0					8,800,000
Repayments of term loan borrowing	269,700,000
Syndicated Facility Agreement \| Revolving loan facility
Debt Instrument [Line Items]
Payments of debt issuance costs	800,000	$ 500,000
Repayments of revolving loan borrowing	21,000,000.0
Senior Unsecured Notes
Debt Instrument [Line Items]
Payments of debt issuance costs	5,700,000
Proceeds from issuance of Senior Notes due 2028	$ 300,000,000.0
Debt Instrument, Interest Rate, Stated Percentage	5.50%
Percentage of Principal Declared Due Upon Event of Default					25.00%
Senior Unsecured Notes \| Changes of Control
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage					101.00%
Senior Unsecured Notes \| 2023 Debt Redemption Period
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage					102.75%
Senior Unsecured Notes \| 2024 Debt Redemption Period
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage					101.375%
Senior Unsecured Notes \| 2025 and Thereafter Debt Redemption Period
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage					100.00%
Senior Unsecured Notes \| Before December 1, 2023 Redemption Period
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage					100.00%
Senior Unsecured Notes \| Before December 1, 2023 Redemption Period \| Proceeds of Certain Equity Offerings
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage					105.50%
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed					35.00%
Term Loan and Senior Unsecured Notes
Debt Instrument [Line Items]
Unamortized debt issuance costs, recorded as reduction of long-term debt, net				8,600,000	$ 8,600,000
Amortization of debt issuance costs					1,700,000
Term Loan
Debt Instrument [Line Items]
Unamortized debt issuance costs, recorded as reduction of long-term debt, net						6,300,000
Amortization of debt issuance costs						1,800,000	700,000
Revolving loan facility
Debt Instrument [Line Items]
Amortization of debt issuance costs					400,000	400,000	$ 500,000
Other Line of Credit
Debt Instrument [Line Items]
Revolving loan facility, maximum borrowing capacity				6,000,000.0	6,000,000.0
Other line of credit borrowings, outstanding				$ 0	$ 0	$ 0
Other Line of Credit \| Minimum
Debt Instrument [Line Items]
Revolving loan facility, interest rate					3.50%
Other Line of Credit \| Maximum
Debt Instrument [Line Items]
Revolving loan facility, interest rate					6.00%