Indebtedness - Schedule of Debt (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Unused Borrowing Capacity	$ 12,171	$ 5,000
Long term debt, Current	5,408	2,602
Long term debt, Noncurrent	532,910	236,649
Long term debt	538,318	239,251
Line of credit	$ 194,975	48,597
Base Rate
Debt Instrument [Line Items]
Annual Contractual Interest Rate	2.25%
Basis point
Debt Instrument [Line Items]
Annual Contractual Interest Rate	3.25%
Prime Rate
Debt Instrument [Line Items]
Annual Contractual Interest Rate	1.00%
Bank Line of Credit
Debt Instrument [Line Items]
Line of credit	$ 194,975	48,597
Recourse debt, Total	194,975	48,597
Recourse Debt
Debt Instrument [Line Items]
Unused Borrowing Capacity	6,571
Long term debt, Noncurrent	194,975	48,597
Long term debt	194,975	$ 48,597
Recourse Debt \| Bank Line of Credit
Debt Instrument [Line Items]
Unused Borrowing Capacity	$ 6,571
Interest Rate		4.25%
Maturity Date	Apr. 30, 2018	Dec. 31, 2016
Recourse Debt \| Bank Line of Credit \| Base Rate
Debt Instrument [Line Items]
Interest Rate	3.67%
Recourse Debt \| Bank Line of Credit \| Prime Rate
Debt Instrument [Line Items]
Annual Contractual Interest Rate		1.00%
Non Recourse Debt
Debt Instrument [Line Items]
Unused Borrowing Capacity	$ 5,600	$ 5,000
Long term debt, Current	5,408	2,602
Long term debt, Noncurrent	337,935	188,052
Long term debt	343,343	190,654
Non Recourse Debt \| Syndicated Term Loans
Debt Instrument [Line Items]
Unused Borrowing Capacity	$ 5,600	$ 5,000
Maturity Date	Dec. 31, 2021	Dec. 31, 2021
Long term debt, Current	$ 926	$ 958
Long term debt, Noncurrent	169,739	123,613
Long term debt	$ 170,665	$ 124,571
Non Recourse Debt \| Syndicated Term Loans \| Basis point \| Term A
Debt Instrument [Line Items]
Interest Rate	3.07%	3.01%
Annual Contractual Interest Rate	2.75%	2.75%
Non Recourse Debt \| Syndicated Term Loans \| Basis point \| Term B
Debt Instrument [Line Items]
Interest Rate	6.00%	6.00%
Annual Contractual Interest Rate	5.00%	5.00%
Non Recourse Debt \| Bank Term Loans
Debt Instrument [Line Items]
Interest Rate	6.25%	6.25%
Maturity Date	Apr. 30, 2022	Apr. 30, 2022
Long term debt, Current	$ 1,159	$ 1,437
Long term debt, Noncurrent	29,580	31,945
Long term debt	$ 30,739	$ 33,382
Non Recourse Debt \| Notes Payable
Debt Instrument [Line Items]
Interest Rate	12.00%	12.00%
Maturity Date	Dec. 31, 2018	Dec. 31, 2018
Long term debt, Noncurrent	$ 33,059	$ 29,563
Long term debt	$ 33,059	$ 29,563
Non Recourse Debt \| Solar Asset Backed Securities Class A
Debt Instrument [Line Items]
Interest Rate	4.40%
Maturity Date	Jul. 31, 2024
Non Recourse Debt \| Solar Asset Backed Securities Class B
Debt Instrument [Line Items]
Interest Rate	5.38%
Maturity Date	Jul. 31, 2024
Non Recourse Debt \| Asset Backed Securities
Debt Instrument [Line Items]
Long term debt, Current	$ 3,323
Long term debt, Noncurrent	105,557
Long term debt	$ 108,880
Non Recourse Debt \| Non Bank Term Loans
Debt Instrument [Line Items]
Interest Rate		9.08%
Maturity Date		Dec. 31, 2024
Long term debt, Current		$ 207
Long term debt, Noncurrent		2,931
Long term debt		$ 3,138

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Publisher FASB
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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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