Ameresco, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Legal Proceedings (Details)

Commitments and Contingencies - Legal Proceedings (Details) (USD $) In Millions, unless otherwise specified	42 Months Ended
	Aug. 31, 2012	May 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Customer reprocurement sought	$ 6.8
Loss contingency claims outstanding		$ 3.9

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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+ Details