Condensed Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended		24 Months Ended
	Jul. 01, 2022	Jul. 01, 2022	Jul. 02, 2021	Dec. 31, 2021	Dec. 31, 2020
Statement of Cash Flows [Abstract]
Net earnings	$ 4,064	$ 8,092	$ 19,840
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization		17,654	18,391
Amortization of debt issuance costs		1,024	882
Accretion of convertible notes discount		0	1,484
Provision for doubtful accounts		263	290
Gain (Loss) on Disposition of Business	0	0	234
Net (gain) loss on sale of assets	(4)	56	15
Net loss on derivative instruments		1,646	566
Stock compensation expense	2,730	4,811	4,225
Non-cash consideration received for blade exchange		(827)	0
Deferred income taxes		2,050	2,957
Changes in assets and liabilities, excluding effects of acquisitions/divestitures:
Accounts receivable		(5,430)	53,232
Increase (Decrease) in Contract with Customer, Asset		2,936	(4,637)
Contract costs		324	(349)
Inventories		(24,411)	(12,205)
Income tax refunds receivable		(2,365)	1,485
Operating Right-of-Use Assets		1,748	781
Other assets		(2,817)	1,319
Accounts payable - trade		(9,701)	(24,068)
Contract liabilities		(38)	(18,588)
Operating Lease Liabilities		(1,703)	(919)
Payments for Retention Plans		0	(25,108)
Other current liabilities		(8,635)	(9,470)
Income taxes payable		(160)	1,532
Pension liabilities		(8,873)	(22,837)
Increase (Decrease) in Other Noncurrent Liabilities		(2,598)	(3,775)
Net cash provided by operating activities		(26,954)	(14,723)
Cash flows from investing activities:
Payments for (Proceeds from) Businesses and Interest in Affiliates		0	(3,428)
Expenditures for property, plant & equipment		(10,520)	(8,102)
Payments to Acquire Investments		10,000
Other, net		1,341	(671)
Net cash used in investing activities		(19,179)	(12,201)
Cash flows from financing activities:
Purchase of treasury shares	(123)	(698)	(390)
Dividends paid		(11,163)	(11,106)
Payments of Debt Issuance Costs		(4,236)	0
Other, net		2,319	876
Net cash provided by (used in) financing activities		(13,778)	(10,620)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect		(59,911)	(37,544)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents		(645)	(183)
Cash and cash equivalents at beginning of period					$ 136,089
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	80,244	80,244		$ 140,800
Cash and cash equivalents and restricted cash at end of period	$ 80,244	80,244	98,362	$ 140,800
Payments to Acquire Investments		$ 10,000
Near Earth Autonomy
Cash flows from investing activities:
Payments to Acquire Investments			0
Payments to Acquire Investments			$ 0