Acquisitions	3 Months Ended
Mar. 31, 2016
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS Main Street Power — On February 18, 2015, the Company completed the acquisition of 100% of the common stock of Main Street Power Company, Inc. for approximately $25 million pursuant to the terms and condition of a definitive agreement dated January 24, 2015. The purchase consideration was composed of $20 million cash and the fair value of earn-out payments of $5 million. At December 31, 2015, the assets acquired (including $4 million cash) and liabilities assumed at the acquisition date were recorded at fair value based on the final purchase price allocation, which resulted in the recognition of $16 million of goodwill. Subsequent changes to the fair value of earn-out payments will be reflected in earnings. Since the date of acquisition, Main Street Power Company, Inc. has been renamed Distributed Energy, Inc.

Acquisitions

3 Months Ended

Mar. 31, 2016

ACQUISITIONS

Main Street Power — On February 18, 2015, the Company completed the acquisition of 100% of the common stock of Main Street Power Company, Inc. for approximately $25 million pursuant to the terms and condition of a definitive agreement dated January 24, 2015. The purchase consideration was composed of $20 million cash and the fair value of earn-out payments of $5 million. At December 31, 2015, the assets acquired (including $4 million cash) and liabilities assumed at the acquisition date were recorded at fair value based on the final purchase price allocation, which resulted in the recognition of $16 million of goodwill. Subsequent changes to the fair value of earn-out payments will be reflected in earnings. Since the date of acquisition, Main Street Power Company, Inc. has been renamed Distributed Energy, Inc.