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

Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Tables)

Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2019

Changes in Allowance for Doubtful Accounts

Changes in the allowance for doubtful accounts are as follows:



	Three Months Ended March 31,
	2019			2018
Allowance for doubtful accounts, beginning of period	$	2,765		$	3,315
Charges to costs and expenses	77			64
Account write-offs and other	(29		)	(86		)
Allowance for doubtful accounts, end of period	$	2,813		$	3,293

Estimated Useful Lives of Property and Equipment

Depreciation and amortization of property and equipment are computed on a straight-line basis over the following estimated useful lives:



Asset Classification		Estimated Useful Life
Furniture and office equipment		Five years
Computer equipment and software costs		Three to five years
Leasehold improvements		Lesser of term of lease or five years
Automobiles		Five years
Land		Unlimited

Schedule of Sale Leaseback Transactions

A summary of amounts related to sale leasebacks in the Company’s condensed consolidated balance sheets is as follows:



	March 31,		December 31,
	2019		2018
Financing lease assets, net	$	37,731	$	38,263
Deferred loss, short-term, net	115		115
Deferred loss, long-term, net	1,888		1,917
Total deferred loss	$	2,003	$	2,032
Financing lease liabilities, short-term	4,958		4,956
Financing lease liabilities, long-term	28,379		28,407
Total financing lease liabilities	$	33,337	$	33,363
Deferred gain, short-term, net	345		345
Deferred gain, long-term, net	5,722		5,808
Total deferred gain	$	6,067	$	6,153

Schedule of Earnings Per Share, Basic and Diluted

When the effects are not anti-dilutive, diluted earnings per share is calculated using the weighted-average outstanding common shares; the dilutive effect of convertible preferred stock, under the “if converted” method; and the treasury stock method with regard to warrants and stock options; all as determined under the treasury stock method.



	Three Months Ended March 31,
	2019		2018
Net income attributable to common shareholders	$	4,147	$	6,988
Basic weighted-average shares outstanding	46,293		45,373
Effect of dilutive securities:
Stock options	1,361		621
Diluted weighted-average shares outstanding	47,654		45,994