CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities:
Net income (loss)	$ 10,874	$ (62,278)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	22,794	24,035
Amortization of debt issuance costs	252	807
Impairment of goodwill and long-lived assets	0	61,109
Deferred income taxes	3,094	(6,048)
(Gain) loss on the sale of a business	964	0
Employee benefit plans settlement expenses	0	385
Stock-based compensation	2,695	1,799
(Gain) loss on disposition of property, plant and equipment	7	25
(Gain) loss from equity method investment	(165)	26
Other, net	(88)	53
Changes in operating assets and liabilities:
Accounts receivable	(16,690)	3,063
Contract assets	9,594	222
Inventories	(9,508)	(353)
Income taxes (receivable) payable	(6,753)	886
Prepaid expenses and other assets	(648)	(953)
Accounts payable	11,415	8,342
Accrued payroll and other compensation	(2,378)	2,974
Deferred revenue	(768)	1,850
Accrued taxes payable	(105)	5,833
Benefit plan liabilities	(3,899)	(434)
Other, net	(2,190)	(928)
Net cash provided by (used for) operating activities	18,497	40,415
Cash flows from investing activities:
Capital expenditures	(13,265)	(15,472)
Collections of finance receivables	3,111	3,390
Payments from divestitures	(2,715)	0
Proceeds from the sale of property, plant and equipment	19	2
Net cash provided by (used for) investing activities	(12,850)	(12,080)
Cash flows from financing activities:
Proceeds from borrowings	263,210	20,000
Debt repayments	(274,910)	(7,001)
Proceeds from servicing receivables	4,787	458
Common stock issued	793	33
Common stock repurchased	(201)	(8)
Net cash provided by (used for) financing activities	(6,321)	13,482
Effect of exchange rate changes on cash	1,042	(602)
Increase (decrease) in cash and cash equivalents	368	41,215
Cash and cash equivalents at beginning of period	102,176	51,331
Cash and cash equivalents at end of period	$ 102,544	$ 92,546