XML 59 R45.htm IDEA: XBRL DOCUMENT v3.22.0.1
DEBT - Narrative (Details)
12 Months Ended
Mar. 08, 2018
USD ($)
bank
Dec. 31, 2021
USD ($)
Dec. 31, 2021
EUR (€)
Dec. 23, 2021
USD ($)
Dec. 31, 2020
USD ($)
Jul. 31, 2020
EUR (€)
Debt Instrument [Line Items]            
Outstanding borrowings   $ 150,000,000     $ 11,750,000  
Net deferred debt issuance costs   2,575,000     486,000  
Syndicated credit facility 2015 | Secured Debt            
Debt Instrument [Line Items]            
Outstanding borrowings   150,000,000     0  
Syndicated credit facility 2015 | Revolving Credit Facility            
Debt Instrument [Line Items]            
Outstanding borrowings   0     0  
Commerzbank line of credit            
Debt Instrument [Line Items]            
Outstanding borrowings   $ 0     $ 0  
Line of credit | Syndicated credit facility 2015            
Debt Instrument [Line Items]            
Line of credit facility, expiration period 5 years          
Maximum borrowing capacity $ 200,000,000          
Debt instrument, annual principal payment, percent of principal 10.00%          
Accordion feature $ 100,000,000          
Line of credit facility, number of banks | bank 4          
Debt instrument, covenant, debt service coverage ratio   1.35        
Line of credit | Syndicated credit facility 2015 | Through Quarter Ended March 31, 2022            
Debt Instrument [Line Items]            
Line of credit facility, maximum leverage ratio   3.5        
Line of credit | Syndicated credit facility 2015 | Quarter Ended June 30, 2022 Through Quarter March 31, 2023            
Debt Instrument [Line Items]            
Line of credit facility, maximum leverage ratio   3.25        
Line of credit | Syndicated credit facility 2015 | Quarter Ended June 30, 2023 And Thereafter            
Debt Instrument [Line Items]            
Line of credit facility, maximum leverage ratio   3.0        
Line of credit | Syndicated credit facility 2015 | Secured Debt            
Debt Instrument [Line Items]            
Maximum borrowing capacity       $ 150,000,000    
Line of credit | Syndicated credit facility 2015 | Revolving Credit Facility            
Debt Instrument [Line Items]            
Maximum borrowing capacity $ 50,000,000          
Outstanding borrowings   $ 0        
Line of credit | German Bank Line of Credit            
Debt Instrument [Line Items]            
Maximum borrowing capacity | €           € 7,000,000
Line of credit | Commerzbank line of credit            
Debt Instrument [Line Items]            
Outstanding borrowings | €     € 0      
Amount of bank guarantees secured by line of credit | €     € 2,997,000      
Line of credit | Commerzbank line of credit | EURIBOR            
Debt Instrument [Line Items]            
Interest rate at end of period   4.50% 4.50%      
Line of credit | Minimum | Syndicated credit facility 2015 | LIBOR            
Debt Instrument [Line Items]            
Basis spread on variable interest rate   1.50%        
Line of credit | Minimum | Syndicated credit facility 2015 | Base Rate            
Debt Instrument [Line Items]            
Basis spread on variable interest rate   0.50%        
Line of credit | Maximum | Syndicated credit facility 2015 | LIBOR            
Debt Instrument [Line Items]            
Basis spread on variable interest rate   3.00%        
Line of credit | Maximum | Syndicated credit facility 2015 | Base Rate            
Debt Instrument [Line Items]            
Basis spread on variable interest rate   2.00%