Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jul. 01, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 80,244	$ 140,800
Accounts receivable, net	77,692	73,524
Contract assets	109,290	112,354
Contract costs, current portion	909	850
Inventories	214,688	193,100
Income tax refunds receivable	16,194	13,832
Assets Held-for-sale, Not Part of Disposal Group, Current	363	0
Other current assets	15,754	12,083
Total current assets	515,134	546,543
Property, plant and equipment, net of accumulated depreciation of $256,689 and $251,888, respectively	192,769	197,822
Operating Lease, Right-of-Use Asset	8,618	11,011
Goodwill	233,135	240,681
Other intangible assets, net	131,403	138,074
Deferred income taxes	15,335	15,717
Contract costs, noncurrent portion	9,865	10,249
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	901	0
Equity Method Investments	10,000
Other assets	40,937	38,385
Total assets	1,158,097	1,198,482
Current liabilities:
Accounts payable – trade	32,192	42,134
Accrued salaries and wages	29,306	38,892
Contract liabilities, current portion	2,893	2,945
Operating Lease, Liability, Current	3,896	4,502
Income taxes payable	239	386
Other current liabilities	36,275	32,076
Total current liabilities	105,141	120,935
Long-term debt, excluding current portion, net of debt issuance costs	197,542	189,421
Deferred income taxes	6,354	6,506
Underfunded pension	10,978	21,786
Contract liabilities, noncurrent portion	16,528	16,528
Operating Lease, Liability, Noncurrent	5,398	7,140
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	230	0
Other Liabilities, Noncurrent	36,984	39,837
Commitments and contingencies (Note 15)
Shareholders' equity:
Preferred stock, $1 par value, 200,000 shares authorized; none outstanding	0	0
Common stock, $1 par value, 50,000,000 shares authorized; voting; 30,584,400 and 30,434,269 shares issued, respectively	30,584	30,434
Additional paid-in capital	241,597	248,153
Retained earnings	753,985	750,445
Accumulated other comprehensive income (loss)	(125,202)	(111,385)
Less 2,598,056 and 2,573,896 shares of common stock, respectively, held in treasury, at cost	(122,022)	(121,318)
Total shareholders’ equity	778,942	796,329
Total liabilities and shareholders’ equity	1,158,097	1,198,482
Disposal Group, Including Discontinued Operation, Liabilities, Current	340	0
Equity Method Investments	10,000
Near Earth Autonomy
Current assets:
Equity Method Investments	10,000	0
Equity Method Investments	$ 10,000	$ 0