Long-term Debt (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 28, 2020	Dec. 30, 2019
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,100,854	$ 1,500,854
Less: Long-term debt unamortized discount	(3,054)	(11,943)
Long-term debt unamortized debt issuance costs	(7,802)	(12,974)
Long-term debt, Carrying Amount	1,089,998	1,475,937
Less: current maturities	(249,975)	(249,975)
Long-term debt, less current maturities	840,023	1,225,962
1.75% Convertible Senior Notes due December 15, 2020
Debt Instrument [Line Items]
Long-term debt, gross	249,975	249,975
Less: Long-term debt unamortized discount	$ (2,188)	$ (9,927)
Debt instrument, interest rate	1.75%	1.75%
Term Loan Due September 2024
Debt Instrument [Line Items]
Long-term debt, gross	$ 405,879	$ 805,879
Less: Long-term debt unamortized discount	$ (866)	$ (2,016)
Interest rate at period end	2.65%	4.28%
Senior Notes Due October 2025
Debt Instrument [Line Items]
Long-term debt, gross	$ 375,000	$ 375,000
Debt instrument, interest rate	5.63%	5.63%
U.S. Asset Based Lending Revolving Loan Due June 2024
Debt Instrument [Line Items]
Revolving loan	$ 40,000	$ 40,000
Long-term debt unamortized debt issuance costs	$ (2,084)	$ (2,511)
Interest rate at period end	1.40%	3.03%
Asia Asset Based Lending Revolving Loan Due June 2024
Debt Instrument [Line Items]
Revolving loan	$ 30,000	$ 30,000
Interest rate at period end	1.55%	3.18%

Debt instruments interest rate at period end.

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- Definition

Amount of short-term and long-term debt and lease obligation.

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- Definition

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after accumulated amortization, of debt discount.

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- Definition

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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Amount of long-term debt and lease obligation, classified as noncurrent.

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Amount of long-term debt and lease obligation, classified as current.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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