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Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2020
Accounting Policies [Abstract]  
Accounts Receivable, Allowance for Credit Loss
Changes in the allowance for credit losses for the three months ended March 31, 2020 and 2019 are as follows:
March 31, 2020March 31, 2019
Allowance for credit loss, beginning of period$2,260  $2,765  
Charges to costs and expenses, net49  77  
Account write-offs and other(189) (29) 
Allowance for credit loss, end of period$2,120  $2,813