Derivative Financial Instruments (Tables)

3 Months Ended

Apr. 01, 2018

Derivative Financial Instruments (Thousands of Dollars) [Abstract]

Summary of Cash Flow Hedging Instruments

	April 1, 2018				April 2, 2017				December 31, 2017
	Notional		Fair		Notional		Fair		Notional		Fair
Hedged transaction	Amount		Value		Amount		Value		Amount		Value
Inventory purchases	$	718,925		(31,453)		974,235		35,711		756,673		(13,695)
Sales		375,441		7,323		423,828		1,083		423,315		16,144
Royalties and Other		178,896		(11,602)		324,008		(1,345)		196,889		(10,383)
Total	$	1,273,262		(35,732)		1,722,071		35,449		1,376,877		(7,934)

Derivatives Fair Value by Balance Sheet Location

	April 1,		April 2,		December 31,
	2018		2017		2017
Prepaid expenses and other current assets
Unrealized gains	$	458		23,241		13,666
Unrealized losses		(405)		(3,204)		(10,319)
Net unrealized gains	$	53		20,037		3,347
Other assets
Unrealized gains	$	5,996		39,032		11,255
Unrealized losses		(3,089)		(3,052)		(2,376)
Net unrealized gains	$	2,907		35,980		8,879
Accrued liabilities
Unrealized gains	$	8,218		9,041		4,215
Unrealized losses		(30,826)		(28,591)		(15,484)
Net unrealized losses	$	(22,608)		(19,550)		(11,269)
Other liabilities
Unrealized gains	$	2,846		149		4,546
Unrealized losses		(18,930)		(1,167)		(13,437)
Net unrealized losses	$	(16,084)		(1,018)		(8,891)

Schedule of Derivative Instruments, Gain (Loss) in Statement of Operations

	Quarter Ended
	April 1,		April 2,
	2018		2017
Statements of Operations Classification
Cost of sales	$	(3,891)		9,874
Sales		332		541
Other		(1,423)		31
Net realized gains	$	(4,982)		10,446

Fair values of undesignated derivative financial instruments

	April 1,		April 2,		December 31,
	2018		2017		2017
Accrued liabilities
Unrealized gains	$	383		289		1,793
Unrealized losses		(1,119)		(316)		(4,684)
Net unrealized loss		(736)		(27)		(2,891)
Total unrealized gain, net	$	(736)		(27)		(2,891)