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Revenue Recognition - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Capitalized costs $ 100  
Capitalized Contract Cost, Amortization 100  
Amortization of deferred loan costs 185 $ 173
Capitalized costs 6,000  
Transitiions activities 6,700  
Impairment Loss 0  
Selling, General and Administrative Expense [Member]    
Amortization of deferred loan costs 600  
Prepaid Expenses [Member]    
Amortization of deferred loan costs 400  
Transitiions activities 3,600  
Other Assets [Member]    
Amortization of deferred loan costs 200  
Transitiions activities 3,100  
Transition Activities [Member]    
Transitiions activities $ 4,400