Condensed Consolidated Statement of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 29, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net earnings	$ 29,160	$ 19,749
Adjustments to reconcile net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization	21,125	21,309
Amortization of debt issuance costs	899	1,103
Accretion of convertible notes discount	1,282	2,091
Provision for doubtful accounts	445	511
Net (gain) loss on sale of assets	(1,588)	(5)
Loss on Extinguishment of Debt	0	137
Loss on Derivative Instruments, Pretax	467
Net loss (gain) on derivative instruments		(337)
Stock compensation expense	3,817	3,707
Deferred income taxes	7,297	6,131
Changes in assets and liabilities, excluding effects of acquisitions/divestitures:
Accounts receivable	32,836	(34,666)
Contract assets	(42,737)	0
Contract costs	(5,480)	0
Inventories	1,782	3,987
Income tax refunds receivable	(803)	1,031
Other current assets	(6,299)	(1,641)
Accounts payable - trade	7,455	1,774
Contract liabilities	74,865	246
Advances on contracts	0	(8,042)
Other current liabilities	(3,172)	(2,171)
Income taxes payable	(3,049)	(414)
Pension liabilities	(23,887)	(10,312)
Other long-term liabilities	(673)	(4,362)
Net cash provided by (used in) operating activities	93,742	(174)
Cash flows from investing activities:
Proceeds from sale of assets	1,712	253
Expenditures for property, plant & equipment	(15,812)	(15,196)
Payments to Acquire Businesses, Net of Cash Acquired	0	(1,365)
Other, net	(635)	(763)
Net cash used in investing activities	(14,735)	(17,071)
Cash flows from financing activities:
Net (repayments) borrowings under revolving credit agreements	(71,383)	(53,431)
Debt repayment	(3,750)	(3,125)
Proceeds from Convertible Debt	0	200,000
Repayments of Convertible Debt	0	(163,654)
Use of Debt Proceeds for the Purchase of Call Options Related to Convertible Note Offering	0	(20,500)
Proceeds from bond hedge settlement convertible notes	0	58,564
Net change in bank overdraft	2,578	575
Proceeds from exercise of employee stock awards	5,274	4,681
Purchase of treasury shares	(8,824)	(2,718)
Dividends paid	(11,149)	(10,312)
Payments of Debt Issuance Costs	0	(7,348)
Other	(439)	(235)
Net cash (used in) provided by financing activities	(87,693)	2,497
Net decrease in cash and cash equivalents	(8,686)	(14,748)
Effect of exchange rate changes on cash and cash equivalents	(578)	1,309
Cash and cash equivalents at beginning of period	36,904	41,205
Cash and cash equivalents at end of period	27,640	27,766
Supplemental disclosure of noncash activities:
Value of common shares issued for unwind of warrant transactions	$ 7,583	$ 30,279