Long-term Debt - Summary of Long-term Debt (Details) - USD ($) $ in Thousands	Jan. 02, 2021	Dec. 28, 2019
Debt Instrument [Line Items]
Long-term debt, gross	$ 719,875	$ 540,375
Long-term debt less debt discount	624,611	536,396
Less current maturities	0	(10,500)
Long-term debt - non-current portion	624,611	525,896
Finance lease obligations	30,750	33,296
Less current maturities	(3,598)	(3,259)
Long-term debt and finance lease obligations, less current portion and debt discount	651,763	555,933
Revolving Credit Facility, due July 18, 2024 \| Credit facility
Debt Instrument [Line Items]
Long-term debt, gross	0	148,000
2025 Notes \| Convertible senior notes
Debt Instrument [Line Items]
Long-term debt, gross	402,500	0
Unamortized discount	(93,123)	0
Term Loan, due July 18, 2024 \| Term loan
Debt Instrument [Line Items]
Long-term debt, gross	317,375	392,375
Unamortized discount	$ (2,141)	$ (3,979)

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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