Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 29, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 28,356	$ 27,711
Accounts receivable, net	260,461	301,094
Contract assets	121,621	108,861
Contract costs, current portion	6,158	5,993
Inventories	313,894	294,912
Income tax refunds receivable	2,145	1,752
Other current assets	36,332	32,782
Total current assets	768,967	773,105
Property, plant and equipment, net of accumulated depreciation of $268,261 and $262,306, respectively	183,930	184,224
Operating Lease, Right-of-Use Asset	87,825	0
Goodwill	343,988	345,365
Other intangible assets, net	87,737	91,007
Deferred income taxes	22,960	24,437
Contract costs, noncurrent portion	9,503	10,666
Other assets	31,058	31,509
Total assets	1,535,968	1,460,313
Current liabilities:
Current portion of long-term debt, net of debt issuance costs	10,000	9,375
Accounts payable – trade	149,084	158,627
Accrued salaries and wages	40,497	46,634
Contract liabilities, current portion	34,283	28,865
Operating Lease, Liability, Current	24,345	0
Income taxes payable	1,935	139
Other current liabilities	58,244	54,836
Total current liabilities	318,388	298,476
Long-term debt, excluding current portion, net of debt issuance costs	274,176	284,256
Deferred income taxes	7,486	7,027
Underfunded pension	102,228	104,988
Contract liabilities, noncurrent portion	72,081	78,562
Operating Lease, Liability, Noncurrent	64,643	0
Other long-term liabilities	54,799	53,847
Commitments and contingencies (Note 13)
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; 29,639,122 and 29,544,714 shares issued, respectively	29,639	29,545
Additional paid-in capital	203,922	200,474
Retained earnings	641,741	610,103
Accumulated other comprehensive income (loss)	(157,973)	(134,898)
Less 1,725,972 and 1,672,917 shares of common stock, respectively, held in treasury, at cost	(75,162)	(72,067)
Total shareholders’ equity	642,167	633,157
Total liabilities and shareholders’ equity	$ 1,535,968	$ 1,460,313