Ameresco, Inc. Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2020

Changes in the allowance for credit losses for the three months ended March 31, 2020 and 2019 are as follows:


	March 31, 2020		March 31, 2019
Allowance for credit loss, beginning of period	$	2,260	$	2,765
Charges to costs and expenses, net	49		77
Account write-offs and other	(189)		(29)
Allowance for credit loss, end of period	$	2,120	$	2,813