Annual report pursuant to Section 13 and 15(d)

Acquisitions - Narrative (Details)

v3.20.4
Acquisitions - Narrative (Details)
£ in Millions
3 Months Ended 12 Months Ended
Aug. 16, 2018
USD ($)
Aug. 15, 2018
GBP (£)
employee
shares
Aug. 15, 2018
USD ($)
employee
shares
Dec. 31, 2020
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2020
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
shares
Aug. 31, 2018
Business Acquisition [Line Items]                  
Granted (in shares) | shares           191,000 2,043,000 851,000  
Discount net cash flows to present value, rate   15.00% 15.00%            
Expected amortization of intangible assets per quarter       $ 1,600,000          
Decrease in goodwill             $ 2,512,000    
MetaPack                  
Business Acquisition [Line Items]                  
Business acquisition, percentage of voting interests acquired     100.00%           100.00%
Business acquisition, key sellers shares of voting interest acquired, percentage of total outstanding shares     80.00%            
Business combination, consideration transferred   £ 171 $ 217,700,000            
Granted (in shares) | shares   320,250 320,250            
Business acquisition, shares granted, number of new employees | employee   72 72            
Expiration period   10 years 10 years            
Business acquisition, goodwill, expected tax deductible amount     $ 0            
Business combination, acquisition related costs             2,500,000    
Foreign currency transaction gain (loss), before tax             $ (1,000,000.0)    
Business combination, pro forma information, revenue of acquiree since acquisition date, actual               $ 20,300,000  
Business combination, pro forma information, earnings or loss of acquiree since acquisition date, actual               $ 1,500,000  
Decrease in goodwill         $ 2,500,000        
Line of Credit | MetaPack | Revolving Credit Facility                  
Business Acquisition [Line Items]                  
Repayments of long-term lines of credit $ 12,700,000                
Vesting Option One | MetaPack                  
Business Acquisition [Line Items]                  
Percentage of options vesting   25.00% 25.00%            
Expected life (in years)   1 year 1 year            
Vesting Option Two | MetaPack                  
Business Acquisition [Line Items]                  
Percentage of options vesting   75.00% 75.00%            
Expected life (in years)   36 months 36 months