Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock.

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Debt and Credit Sources - Schedule of Convertible Debt (Details) - USD ($)	Jul. 04, 2021	Jan. 03, 2021	Dec. 31, 2015	Jun. 30, 2014
Debt Instrument [Line Items]
Face Value	$ 558,678,000
Convertible debt:
Debt Instrument [Line Items]
Carrying Value	423,059,000	$ 484,974,000
Face Value	424,995,000	487,634,000
Fair value	603,871,000	613,416,000
Convertible debt: \| 0.875% debentures due 2021
Debt Instrument [Line Items]
Interest rate				0.875%
Carrying Value	0	62,531,000
Face Value	0	62,634,000		$ 400,000,000.0
Fair value	0	64,018,000
Convertible debt: \| 4.00% debentures due 2023
Debt Instrument [Line Items]
Interest rate			4.00%
Carrying Value	423,059,000	422,443,000
Face Value	424,995,000	425,000,000	$ 425,000,000.0
Fair value	$ 603,871,000	$ 549,398,000