CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net (loss) income	$ (52)	$ 27,760
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Gain on divestiture	(1,459)	0
Depreciation and amortization	36,682	22,442
Deferred income taxes	(12,849)	340
Pension plan settlement expense	25,701	0
Stock-based compensation	2,073	3,187
Inventory step-up amortization	0	1,390
(Gain) loss on disposition of property, plant and equipment	(43)	100
Income from equity method investment	(120)	(120)
Changes in operating assets and liabilities:
Accounts receivable	10,528	(25,407)
Contract assets	(4,330)	(5,443)
Inventories	(6,206)	(12,160)
Accounts payable	13,427	8,296
Accrued payroll and other compensation	4,935	(1,406)
Accrued taxes	1,810	981
Other, net	(7,133)	(5,462)
Net cash provided by operating activities	62,964	14,498
Cash flows from investing activities:
Capital expenditures	(27,236)	(20,091)
Proceeds from divestiture	2,298	0
Proceeds from the sale of property, plant and equipment	297	282
Business acquisitions, net of cash acquired	869	(269,972)
Net cash used for investing activities	(23,772)	(289,781)
Cash flows from financing activities:
Proceeds from borrowings	0	338,000
Debt repayments	(38,185)	(76,794)
Debt issuance cost repayments	0	(538)
Common stock issued	5	846
Common stock repurchased	(50)	(956)
Net cash (used for) provided by financing activities	(38,230)	260,558
Effect of exchange rate changes on cash	(1,280)	(1,076)
Decrease in cash and cash equivalents	(318)	(15,801)
Cash and cash equivalents at beginning of period	49,237	59,875
Cash and cash equivalents at end of period	$ 48,919	$ 44,074