Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Operating activities
Net income (loss)	$ 13,066	$ (35,969)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization of intangible assets	28,368	33,251
Non-cash operating lease expense	8,141	8,234
Stock-based compensation	13,694	12,532
Amortization of prepaid debt fees	1,820	1,720
Deferred taxes, net	(2,509)	(4,061)
Loss on sale of business	630	2,415
Goodwill impairment	0	38,480
Restructuring, non-cash	922	(817)
Other adjustments, net	(199)	194
Changes in operating assets and liabilities, net of acquisition and sale of business:
Accounts receivable	(34,681)	28,924
Inventories	(36,466)	(13,592)
Other current assets	(33,554)	(10,688)
Other long-term assets	5,595	(3,134)
Accounts payable, other current liabilities, and taxes payable	4,670	(16,611)
Wages and benefits payable	9,040	(22,264)
Unearned revenue	42,919	36,093
Warranty	(440)	(2,501)
Restructuring	31,181	(23,448)
Other operating, net	(9,208)	(6,102)
Net cash provided by operating activities	42,989	22,656
Investing activities
Net proceeds (payments) related to the sale of business	(772)	55,933
Acquisitions of property, plant, and equipment	(12,498)	(10,663)
Business acquisitions, net of cash and cash equivalents acquired	0	23
Other investing, net	50	1,722
Net cash provided by (used in) investing activities	(13,220)	47,015
Financing activities
Issuance of common stock	1,641	1,797
Repurchase of common stock	0	(16,972)
Prepaid debt fees	(517)	(695)
Other financing, net	(354)	(4,206)
Net cash provided by (used in) financing activities	770	(20,076)
Effect of foreign exchange rate changes on cash and cash equivalents	241	(3,674)
Increase in cash and cash equivalents	30,780	45,921
Cash and cash equivalents at beginning of period	202,007	162,579
Cash and cash equivalents at end of period	232,787	208,500
Supplemental disclosure of cash flow information:
Income taxes, net	20,653	7,062
Interest	$ 785	$ 717