XML 54 R30.htm IDEA: XBRL DOCUMENT v3.20.1
Revenue - Schedule of Accounts Receivable and Allowance for Doubtful Accounts (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]    
Balance, beginning of period $ 1,766 $ 1,364
Changes to receivable allowance    
Add Provision charged to expense 223 192
Recoveries 0 11
Less Charges against allowance (10) (60)
Balance, end of period $ 1,979 $ 1,507