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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities
Net income	$ 49,395	$ 58,184	$ 42,795
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	56,842	55,114	42,743
Deferred income taxes	5,350	26,049	7,672
(Income) loss from discontinued operations	(1,481)	268	684
Restructuring charges	1,587	1,004	5,183
Impairment charges (recoveries)	(35)	(29,098)	218
(Gains) losses on dispositions of property and other assets	473	1,420	(54)
Share-based compensation expense	4,870	10,969	8,038
Excess tax benefit from share-based compensation arrangements			(95)
Other non-cash items, net	4,306	5,029	6,167
Change in operating assets and liabilities (excluding the impact of acquisitions):
Receivables	(6,200)	(2,338)	(9,358)
Inventories	(1,573)	121	149
Current contract costs	(4,976)	2,544	(2,795)
Accounts payable	(1,645)	7,546	1,770
Restructuring liabilities	(1,716)	(1,954)	(3,866)
Accrued compensation	(12,818)	(5,152)	(353)
Contract liabilities	3,677	(11,314)	7,906
Income taxes payable	(7,696)	5,820	(4,630)
Other assets and liabilities, net	2,235	(11,989)	(1,856)
Net cash provided by operating activities	90,595	112,223	100,318
Cash flows from investing activities
Capital expenditures	(83,345)	(56,621)	(49,815)
Proceeds from insurance		31,570
Cash paid for acquired businesses, net	(4,628)	(1,501)	(195,989)
Proceeds from dispositions of property and other assets	925	947	1,166
Net cash used in investing activities	(87,048)	(25,605)	(244,638)
Cash flows from financing activities
Proceeds from borrowings	146,580	90,004	229,701
Payments on debt and capital lease obligations	(128,211)	(135,801)	(108,915)
Dividends paid on common stock	(8,154)	(8,160)	(8,111)
Debt issuance costs	(1,823)	(5)	(336)
Common stock purchased for treasury	(18,383)	(2,119)	(722)
Excess tax benefit from share-based compensation arrangements			95
Acquisition of business - deferred consideration			(130)
Proceeds from exercise of stock options	84
Net cash provided by (used in) financing activities	(9,907)	(56,081)	111,582
Effect of exchange rate changes on cash and cash equivalents	(2,470)	2,286	(2,893)
Net change in cash and cash equivalents	(8,830)	32,823	(35,631)
Cash and cash equivalents, beginning of year	53,723	20,900	56,531
Cash and cash equivalents, end of year	$ 44,893	$ 53,723	$ 20,900

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The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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Amount of cash inflow for proceeds from settlement of insurance claim, classified as investing activities. Excludes insurance settlement classified as operating activities.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt and payment of capital lease obligations.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Impairment charges (recoveries).

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Increase decrease in contract liabilities.

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Increase decrease in current contract costs.

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