Debt and Credit Sources - Schedule of Debt (Details) - USD ($)	3 Months Ended
	Apr. 04, 2021	Oct. 03, 2021	Jan. 03, 2021	Dec. 31, 2015	Jun. 30, 2014	Dec. 31, 2010
Debt Instrument [Line Items]
Face Value		$ 534,440,000
CEDA loan
Debt Instrument [Line Items]
Interest rate						8.50%
Face Value		0	$ 30,000,000			$ 30,000,000
Short-term		0	0
Long-term		0	29,219,000
Total		0	29,219,000
Other debt
Debt Instrument [Line Items]
Face Value		109,445,000	126,283,000
Short-term		66,304,000	97,059,000
Long-term		42,082,000	27,228,000
Total		108,386,000	124,287,000
Convertible debt:
Debt Instrument [Line Items]
Face Value		424,995,000	487,634,000
Convertible debt: | 0.875% debentures due 2021
Debt Instrument [Line Items]
Interest rate					0.875%
Face Value		0	62,634,000		$ 400,000,000
Short-term		0	62,531,000
Long-term		0	0
Total		0	62,531,000
Convertible debt: | 4.00% debentures due 2023
Debt Instrument [Line Items]
Interest rate				4.00%
Face Value		424,995,000	425,000,000	$ 425,000,000
Short-term		0	0
Long-term		423,370,000	422,443,000
Total		423,370,000	422,443,000
Face amount decrease by due to bond conversion	$ 5,000
Convertible and Loans
Debt Instrument [Line Items]
Face Value		534,440,000	643,917,000
Short-term		66,304,000	159,590,000
Long-term		465,452,000	478,890,000
Total		$ 531,756,000	$ 638,480,000