Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Apr. 01, 2021
OPERATING ACTIVITIES:
Net loss	$ (14,902)	$ (28,130)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Losses on investments in joint ventures	141	0
Gain on disposition of property, equipment and other assets	(424)	(2,204)
Depreciation and amortization	17,231	17,979
Amortization of debt issuance costs and discount on convertible notes	413	623
Share-based compensation	2,917	1,484
Deferred income taxes	(6,342)	(10,794)
Other long-term obligations	(460)	1,164
Contribution of the Company’s stock to savings and profit-sharing plan	956	1,012
Changes in operating assets and liabilities:
Accounts receivable	7,495	(213)
Government grants receivable	4,335	4,913
Other assets	(1,841)	23
Operating leases	(1,161)	(996)
Accounts payable	(10,956)	(800)
Income taxes	22,704	6,010
Taxes other than income taxes	(3,908)	(1,543)
Accrued compensation	(6,563)	283
Other accrued liabilities	(3,164)	(1,794)
Total adjustments	21,373	15,147
Net cash provided by (used in) operating activities	6,471	(12,983)
INVESTING ACTIVITIES:
Capital expenditures	(6,562)	(1,525)
Proceeds from disposals of property, equipment and other assets	3,438	4,308
Other investing activities	21	(231)
Net cash provided by (used in) investing activities	(3,103)	2,552
Debt transactions:
Proceeds from borrowings on revolving credit facility	22,000	36,000
Repayment of borrowings on revolving credit facility	(22,000)	(22,000)
Repayments on short-term borrowings	(820)	(4,150)
Principal payments on long-term debt	(427)	(93)
Debt issuance costs	0	(4)
Principal payments on finance lease obligations	(584)	(630)
Equity transactions:
Treasury stock transactions, except for stock options	(1,364)	(1,169)
Exercise of stock options	26	1,292
Net cash provided by (used in) financing activities	(3,169)	9,246
Net increase (decrease) in cash, cash equivalents and restricted cash	199	(1,185)
Cash, cash equivalents and restricted cash at beginning of period	24,054	14,088
Cash, cash equivalents and restricted cash at end of period	24,253	12,903
Supplemental Information:
Interest paid, net of amounts capitalized	5,904	5,952
Income taxes refunded, including interest earned	22,911	5,974
Change in accounts payable for additions to property, equipment and other assets	$ (1,041)	$ 919