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Long-Term Debt - Summary of Long-Term Debt (Detail) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Line of Credit Facility [Line Items]    
Total debt $ 268,000,000 $ 263,500,000
Less unamortized debt issuance costs (6,101,956) (7,287,548)
Long-term debt 261,898,044 256,212,452
Less current installments (5,000,000) (7,500,000)
Long-term debt, net of current portion 256,898,044 248,712,452
Term Loan [Member]    
Line of Credit Facility [Line Items]    
Total debt 238,000,000 239,000,000
Revolving Credit Loan [Member]    
Line of Credit Facility [Line Items]    
Total debt 20,000,000 11,000,000
Long-term debt 20,000,000  
Promissory Note [Member]    
Line of Credit Facility [Line Items]    
Total debt $ 10,000,000 $ 13,500,000