XML 95 R80.htm IDEA: XBRL DOCUMENT v3.7.0.1
Indebtedness - Additional Information (Details) - USD ($)
1 Months Ended 12 Months Ended
Jul. 31, 2016
Mar. 31, 2016
Jan. 31, 2016
Jul. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Jun. 30, 2016
May 31, 2016
Apr. 30, 2015
Debt Instrument [Line Items]                        
Loan outstanding balance             $ 898,023,000 $ 534,764,000        
Solar energy systems, gross             2,837,454,000 2,091,585,000        
Repayment of lease obligations             $ 12,759,000 4,854,000 $ 1,181,000      
Secured Debt                        
Debt Instrument [Line Items]                        
Aggregate amount of debt $ 33,000,000                      
Debt instrument, variable rate description             The facility includes two tranches, one priced at LIBOR + 5.50% for SRECs currently under purchase contracts with counterparties and another tranche priced at LIBOR + 9.00% for uncontracted SRECs. Both tranches are subject to a LIBOR floor of 0.75%.          
Debt instrument maturity term             2021-07          
Basis point | Secured Debt                        
Debt Instrument [Line Items]                        
Debt instrument LIBOR floor rate 0.75%                      
Bank Line of Credit | Syndicated Working Capital Facility                        
Debt Instrument [Line Items]                        
Line of credit, maximum borrowing capacity $ 250,000,000                 $ 245,000,000   $ 205,000,000
Line of credit facility capacity, period increase $ 5,000,000                 $ 40,000,000    
Minimum unencumbered liquid assets to be maintained             $ 25,000,000          
Bank Line of Credit | Syndicated Working Capital Facility | Minimum                        
Debt Instrument [Line Items]                        
Interest coverage ratio             200.00%          
Syndicated Term Loans                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity     $ 250,000,000                  
Debt maturity date     Dec. 31, 2020                  
Syndicated Term Loans | Line Of Credit Facility                        
Debt Instrument [Line Items]                        
Line of credit facility capacity, period increase                     $ 90,000,000  
Maximum borrowing capacity     $ 220,000,000               $ 310,000,000  
Syndicated Term Loans | Term Loan                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity     23,000,000                  
Syndicated Term Loans | Letter of Credit                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity     $ 7,000,000                  
Syndicated Term Loans | Basis point | Line Of Credit Facility                        
Debt Instrument [Line Items]                        
Annual Contractual Interest Rate     2.50%                  
Revolving line of credit facility available period     3 years                  
Debt instrument, variable rate periodic increase     2.75%                  
Revolving line of credit facility available period increase     2 years                  
Syndicated Term Loans | Basis point | Term Loan                        
Debt Instrument [Line Items]                        
Annual Contractual Interest Rate     5.00%                  
Revolving line of credit facility available period     3 years                  
Debt instrument, variable rate periodic increase     6.50%                  
Revolving line of credit facility available period increase     2 years                  
Syndicated Term Loans | LIBOR Floor Rate | Term Loan                        
Debt Instrument [Line Items]                        
Annual Contractual Interest Rate     1.00%                  
Syndicated Term Loans | Credit Facility Agreements with Syndicate of Banks                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity         $ 195,400,000       195,400,000      
Debt maturity date             Dec. 31, 2021          
Syndicated Term Loans | Credit Facility Agreements with Syndicate of Banks | Subordinated Term Loan                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity         24,000,000       24,000,000      
Syndicated Term Loans | Credit Facility Agreements with Syndicate of Banks | Working Capital Revolver Commitment                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity         5,000,000       5,000,000      
Syndicated Term Loans | Credit Facility Agreements with Syndicate of Banks | Senior Secured Revolving Letter Of Credit Facility                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity         $ 7,900,000       7,900,000      
Syndicated Term Loans | Credit Facility Agreements with Syndicate of Banks | Basis point | Senior Term Loan                        
Debt Instrument [Line Items]                        
Annual Contractual Interest Rate         2.75%              
Debt instrument, variable rate periodic increase         0.25%              
Syndicated Term Loans | Credit Facility Agreements with Syndicate of Banks | Minimum | Subordinated Term Loan                        
Debt Instrument [Line Items]                        
Debt prepayment penalty percentage         0.00%              
Syndicated Term Loans | Credit Facility Agreements with Syndicate of Banks | Minimum | Basis point | Subordinated Term Loan                        
Debt Instrument [Line Items]                        
Annual Contractual Interest Rate         1.00%              
Syndicated Term Loans | Credit Facility Agreements with Syndicate of Banks | Maximum | Subordinated Term Loan                        
Debt Instrument [Line Items]                        
Debt prepayment penalty percentage         2.00%              
Syndicated Term Loans | Credit Facility Agreements with Syndicate of Banks | Maximum | Basis point | Subordinated Term Loan                        
Debt Instrument [Line Items]                        
Annual Contractual Interest Rate         5.00%              
Syndicated Term Loans | Aggregation Facility | Senior Term Loan                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity         $ 158,500,000       $ 158,500,000      
Contracted SRECs | Basis point | Secured Debt                        
Debt Instrument [Line Items]                        
Annual Contractual Interest Rate 5.50%           5.50%          
Debt instrument, variable rate description             LIBOR + 5.50%          
Uncontracted SRECs | Basis point | Secured Debt                        
Debt Instrument [Line Items]                        
Annual Contractual Interest Rate 9.00%           9.00%          
Debt instrument, variable rate description             LIBOR + 9.00%          
Secured, Non-recourse Loan Agreement                        
Debt Instrument [Line Items]                        
Aggregate amount of debt   $ 24,500,000                    
Debt instrument maturity year   2022-09                    
Debt instrument, Description             In March 2016, a subsidiary of the Company entered into a $24.5 million secured, non-recourse loan agreement. The loan will be repaid through cashflows from a lease pass-through arrangement previously entered into by the Company. The loan matures in September 2022 and has an interest rate of LIBOR + 2.25%.          
Secured, Non-recourse Loan Agreement | Basis point                        
Debt Instrument [Line Items]                        
Annual Contractual Interest Rate   2.25%                    
Bank Term Loans                        
Debt Instrument [Line Items]                        
Debt maturity date             Apr. 30, 2022          
Aggregate amount of debt           $ 38,000,000            
Interest Rate           4.50%            
Notes Payable                        
Debt Instrument [Line Items]                        
Debt maturity date             Dec. 31, 2018          
Proceeds from issuance of senior secured notes           $ 27,200,000            
Notes Payable | Payment-in-kind (“PIK”)                        
Debt Instrument [Line Items]                        
Interest Rate           12.00%            
Loan outstanding balance             $ 9,500,000 6,300,000        
Solar Asset Backed Securities Class A                        
Debt Instrument [Line Items]                        
Aggregate amount of debt       $ 100,000,000                
Solar Asset Backed Securities Class B                        
Debt Instrument [Line Items]                        
Aggregate amount of debt       11,000,000                
Asset Backed Securities                        
Debt Instrument [Line Items]                        
Secured Borrowings Assets Carrying Amount             $ 181,800,000 $ 190,200,000        
Debt instrument discount rate             0.08%          
Solar energy systems, gross             $ 119,700,000          
Repayment of lease obligations       $ 88,900,000     88,900,000          
Net of fees from proceeds from debt instrument             $ 7,300,000