Financial instruments (Tables)

6 Months Ended

Jun. 28, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Values of Derivative Instruments Designated as Hedging Instruments

The following table presents the locations in the condensed consolidated balance sheet and fair value of derivative financial instruments as of June 28, 2020 and December 31, 2019:

	June 28, 2020		December 31, 2019
	(Dollars in thousands)
Asset derivatives:
Designated foreign currency forward contracts	$	995	$	1,659
Non-designated foreign currency forward contracts	105		192
Cross-currency interest rate swaps	21,652		21,575
Prepaid expenses and other current assets	22,752		23,426
Cross-currency interest rate swaps	35,701		13,066
Other assets	35,701		13,066
Total asset derivatives	$	58,453	$	36,492
Liability derivatives:
Designated foreign currency forward contracts	$	3,391	$	1,285
Non-designated foreign currency forward contracts	187		102
Other current liabilities	3,578		1,387
Total liability derivatives	$	3,578	$	1,387