Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2021	Mar. 28, 2020
Operating Activities
Net income (loss)	$ (27,027)	$ (24,127)
Income (loss) from discontinued operations	0	(708)
Adjustments to reconcile income (loss) from continuing operations to cash provided by operating activities:
Depreciation and amortization	36,489	37,842
Stock-based incentive compensation expense	(653)	1,943
Deferred income tax expense (benefit)	61,698	17,381
Net periodic benefit cost of pension and other postretirement plans	2,250	2,677
Unrealized loss (gain) on derivative instruments	0	6,792
Unrealized loss (gain) from foreign currency	1,599	(11,368)
Other	879	275
Changes in operating assets and liabilities:
Receivables	(6,580)	(10,686)
Inventories	(63,133)	(24,924)
Accounts payable	(256)	(1,518)
Accrued liabilities	27,375	20,707
All other operating activities	7,156	(25,292)
Contributions to pension and other postretirement plans	(1,582)	(1,944)
Cash Provided by (Used for) Operating Activities-continuing operations	38,215	(12,950)
Cash Provided by (Used for) Operating Activities-discontinued operations	0	204
Cash Provided by (Used for) Operating Activities	38,215	(12,746)
Investing Activities
Capital expenditures, net	(19,525)	(12,582)
Investment in equity method investment	(987)	0
Cash Used for Investing Activities	(20,512)	(12,582)
Financing Activities
Revolving credit facility and other borrowings	0	7,592
Repayment of long-term debt	(1,549)	(1,786)
Short-term financing, net	(520)	0
Common stock repurchased	(1,420)	(438)
Cash Provided by (Used for) Financing Activities	(3,489)	5,368
Cash and Cash Equivalents
Change in cash and cash equivalents	14,214	(19,960)
Net effect of foreign exchange on cash and cash equivalents	(1,117)	(1,393)
Balance, beginning of year	93,653	64,025
Balance, end of period	$ 106,750	$ 42,672