Quarterly report pursuant to Section 13 or 15(d)

ACQUISITIONS - Acquisition of ExOne (Details)

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ACQUISITIONS - Acquisition of ExOne (Details) - USD ($)
$ / shares in Units, $ in Thousands
2 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Nov. 12, 2021
Dec. 31, 2021
Jun. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
Dec. 31, 2020
Business Combination, Consideration Transferred [Abstract]            
Payment to acquire business     $ 1,000      
Intangible assets, Gross Carrying Amount   $ 280,751 275,890 $ 275,890 $ 280,751  
Liabilities assumed:            
Goodwill   639,301 377,710 $ 377,710 639,301 $ 2,252
Restricted Stock Units            
Business Combination, Consideration Transferred [Abstract]            
Vesting period       4 years    
Trade name            
Business Combination, Consideration Transferred [Abstract]            
Intangible assets, Gross Carrying Amount   12,475 12,452 $ 12,452 12,475  
Customer relationships            
Business Combination, Consideration Transferred [Abstract]            
Intangible assets, Gross Carrying Amount   69,127 $ 67,431 $ 67,431 69,127  
ExOne Company            
Business Combination, Consideration Transferred [Abstract]            
Purchase consideration $ 613,002          
Payment to acquire business 201,399          
Value of stock issued for acquisition $ 411,603          
Common stock issued for acquisition 48,218,063          
Common stock fair value issued for acquisition $ 411,600          
Number of incentive stock options granted 86,020          
Weighted average exercise price of incentive stock options $ 4.47          
Intangible assets, Gross Carrying Amount $ 82,100          
Transaction costs         $ 8,500  
Net revenues included in consolidated result   15,500        
Net income (loss) included in consolidated result   $ (6,900)        
Assets acquired:            
Cash and cash equivalents 119,068          
Restricted cash - current 3,007          
Accounts receivable 13,639          
Inventory 27,200          
Prepaid expenses and other current assets 5,165          
Property and equipment 33,991          
Intangible assets 82,100          
Other noncurrent assets 2,734          
Total assets acquired 286,904          
Liabilities assumed:            
Accounts payable 5,830          
Current portion of lease liability 1,919          
Accrued expenses and other current liabilities 11,025          
Current portion of deferred revenue 15,331          
Customer deposits 10,168          
Current portion of operating lease liability 1,919          
Deferred tax liability 3,465          
Lease liability, net of current portion 332          
Deferred revenue, net of current portion 147          
Other noncurrent liabilities 321          
Total liabilities assumed 48,538          
Net assets acquired 238,366          
Goodwill 374,636          
Total net assets acquired 613,002          
ExOne Company | Developed Technology            
Business Combination, Consideration Transferred [Abstract]            
Intangible assets, Gross Carrying Amount $ 72,900          
Estimated Life 8 years          
ExOne Company | Trade name            
Business Combination, Consideration Transferred [Abstract]            
Intangible assets, Gross Carrying Amount $ 1,300          
Estimated Life 4 years          
ExOne Company | Customer relationships            
Business Combination, Consideration Transferred [Abstract]            
Intangible assets, Gross Carrying Amount $ 7,900          
Estimated Life 12 years