XML 50 R34.htm IDEA: XBRL DOCUMENT v3.20.4
Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2020
Accounting Policies [Abstract]  
Accounts Receivable, Allowance for Credit Losses
The change in the allowance for credit losses for the year ended December 31, 2020 was as follows (in thousands):
Balance at December 31, 2019$14,466 
Cumulative-effect adjustment3,150 
Provision for credit losses3,269 
Amounts written off against the allowance, net of recoveries(2,854)
Balance at December 31, 2020$18,031