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Debt - Summary of Outstanding Debt (Detail) - USD ($) $ in Thousands		Sep. 28, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Foreign subsidiary lines of credit		$ 58	$ 178
Total notes payable and debt, current		100,058	178
Unamortized debt issuance costs		(4,399)	(1,828)
Long-term debt		1,255,601	1,148,172
Total debt		1,355,659	1,148,350
Senior Unsecured Notes Series B [Member]
Debt Instrument [Line Items]
Total notes payable and debt, current		100,000
Long-term debt			100,000
Senior Unsecured Notes Series E [Member]
Debt Instrument [Line Items]
Long-term debt		50,000	50,000
Senior Unsecured Notes Series F [Member]
Debt Instrument [Line Items]
Long-term debt		100,000	100,000
Senior Unsecured Notes Series G [Member]
Debt Instrument [Line Items]
Long-term debt		50,000	50,000
Senior Unsecured Notes Series H [Member]
Debt Instrument [Line Items]
Long-term debt	[1]	50,000	50,000
Senior Unsecured Notes Series I [Member]
Debt Instrument [Line Items]
Long-term debt		50,000	50,000
Senior Unsecured Notes Series K [Member]
Debt Instrument [Line Items]
Long-term debt		160,000	160,000
Senior Unsecured Notes Series L [Member]
Debt Instrument [Line Items]
Long-term debt		200,000
Senior Unsecured Notes Series M [Member]
Debt Instrument [Line Items]
Long-term debt		300,000
Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Long-term debt		$ 300,000	$ 590,000
[1] Series H senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.25%.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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