XML 54 R34.htm IDEA: XBRL DOCUMENT v3.20.4
Organization and Significant Accounting Policies - Additional Information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
segment
Aug. 31, 2019
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Number of operating segments | segment 1  
Line of Credit Agreement    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Maximum borrowing capacity | $ $ 50.0 $ 50.0
Line of Credit Agreement | Maximum    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Borrowing option - percentage of eligible accounts receivable 85.00% 85.00%