Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Oct. 31, 2015	Jan. 31, 2015	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Other Commitments [Line Items]
Letters of credit outstanding, amount			$ 8.5		$ 8.5		$ 3.5
Capital Lease Obligations			28.3		$ 28.3		24.0
Photovoltaic Modules
Other Commitments [Line Items]
Purchase commitment with suppliers	$ 146.0	$ 70.0
Long-term purchase commitment, period					12 months
Long term purchase commitment ending period	2016-12
Commitment of $146.0 million | Photovoltaic Modules
Other Commitments [Line Items]
Delivered purchase commitments			33.0		$ 33.0
Non Cancellable Operating Leases Arrangements
Other Commitments [Line Items]
Operating lease expenses			2.9	$ 1.5	5.6	$ 2.6
Deferred rent liabilities			$ 2.4		$ 2.4		$ 1.9
Maximum | Capital Lease Obligations
Other Commitments [Line Items]
Lease obligation interest rates			10.00%		10.00%
Letter of Credit | Minimum
Other Commitments [Line Items]
Letter of credit, fee percentage					2.50%		2.00%
Letter of Credit | Maximum
Other Commitments [Line Items]
Letter of credit, fee percentage					2.75%		3.25%