Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)

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Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Recurring Basis - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Assets:    
Total Assets $ 4,287 $ 4,843
Liabilities:    
Total Liabilities 1,681 592
Mutual Fund    
Assets:    
Total Assets 593 590
Interest Rate Swap    
Liabilities:    
Total Liabilities 92 109
Warrant Liability    
Liabilities:    
Total Liabilities 1,589  
Debt for Forward Share Repurchase Agreement    
Liabilities:    
Total Liabilities   483
Certificates of Deposit    
Assets:    
Total Assets 3,694 4,253
Level 1    
Assets:    
Total Assets 593 590
Level 1 | Mutual Fund    
Assets:    
Total Assets 593 590
Level 2    
Assets:    
Total Assets 3,694 4,253
Liabilities:    
Total Liabilities 1,681 592
Level 2 | Interest Rate Swap    
Liabilities:    
Total Liabilities 92 109
Level 2 | Warrant Liability    
Liabilities:    
Total Liabilities 1,589  
Level 2 | Debt for Forward Share Repurchase Agreement    
Liabilities:    
Total Liabilities   483
Level 2 | Certificates of Deposit    
Assets:    
Total Assets $ 3,694 $ 4,253