Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 28, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 17,016	$ 25,895
Accounts receivable, net	100,799	149,338
Contract assets	118,774	99,261
Contract costs, current portion	5,114	5,993
Inventories	163,006	131,569
Income tax refunds receivable	5,487	1,752
Disposal Group, Including Discontinued Operation, Assets, Current	365,264	351,261
Other current assets	10,568	8,036
Total current assets	786,028	773,105
Property, plant and equipment, net of accumulated depreciation of $201,400 and $192,285, respectively	138,246	137,112
Operating Lease, Right-of-Use Asset	16,330	0
Goodwill	195,332	196,161
Other intangible assets, net	56,054	58,567
Deferred income taxes	39,802	38,040
Contract costs, noncurrent portion	9,187	10,666
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	292,957	229,238
Other assets	30,903	31,173
Total assets	1,564,839	1,474,062
Current liabilities:
Current portion of long-term debt, net of debt issuance costs	127,603	9,375
Accounts payable – trade	54,086	56,826
Accrued salaries and wages	29,959	32,795
Contract liabilities, current portion	30,707	28,865
Operating Lease, Liability, Current	4,259	0
Income taxes payable	0	139
Disposal Group, Including Discontinued Operation, Liabilities, Current	136,292	131,047
Other current liabilities	38,669	39,429
Total current liabilities	421,575	298,476
Long-term debt, excluding current portion, net of debt issuance costs	180,196	284,256
Deferred income taxes	7,483	7,146
Underfunded pension	99,469	104,988
Contract liabilities, noncurrent portion	72,081	78,562
Operating Lease, Liability, Noncurrent	12,895	0
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	63,892	15,602
Other long-term liabilities	49,079	51,875
Commitments and contingencies (Note 14)
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; 29,723,147 and 29,544,714 shares issued, respectively	29,723	29,545
Additional paid-in capital	208,491	200,474
Retained earnings	649,610	610,103
Accumulated other comprehensive income (loss)	(153,708)	(134,898)
Less 1,745,385 and 1,672,917 shares of common stock, respectively, held in treasury, at cost	(75,947)	(72,067)
Total shareholders’ equity	658,169	633,157
Total liabilities and shareholders’ equity	$ 1,564,839	$ 1,474,062