Acquisitions - Schedule of Acquisition Accounting (Details) $ in Thousands	Jun. 30, 2016 USD ($)
FERSA Final
Business Acquisition [Line Items]
Cash and cash equivalents	$ 8,022
Restricted cash	0
Accounts receivable, net	4,220
Renewable energy facilities, net	55,312
Intangible assets	8,400
Other assets	1,182
Total assets acquired	77,136
Accrued expenses and other current liabilities	4,479
Deferred tax liabilities	1,518
Long term debt, including current portion	38,746
Total liabilities assumed	44,743
Fair value of net assets acquired	32,393
Alto Cielo Preliminary
Business Acquisition [Line Items]
Cash and cash equivalents	190
Restricted cash	1,923
Accounts receivable, net	311
Renewable energy facilities, net	35,530
Intangible assets	0
Other assets	2,738
Total assets acquired	40,692
Accrued expenses and other current liabilities	3,670
Deferred tax liabilities	673
Long term debt, including current portion	4,031
Total liabilities assumed	8,374
Fair value of net assets acquired	$ 32,318