Quarterly report pursuant to Section 13 or 15(d)

Investment Funds and Other Variable Interest Entities - Schedule of Variable Interest Entity Financial Information (Details)

v3.19.2
Investment Funds and Other Variable Interest Entities - Schedule of Variable Interest Entity Financial Information (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Variable Interest Entity [Line Items]    
Variable interest entity, current assets $ 4,996 $ 2,473
Variable interest entity, assets 134,848 126,727
Variable interest entity, current liabilities 6,479 6,092
Variable interest entity, liabilities 40,217 34,684
Cash and cash equivalents    
Variable Interest Entity [Line Items]    
Variable interest entity, current assets 2,476 1,255
Restricted cash    
Variable Interest Entity [Line Items]    
Variable interest entity, current assets 156 156
Accounts receivable, net    
Variable Interest Entity [Line Items]    
Variable interest entity, current assets 582 374
Costs and estimated earnings in excess of billings    
Variable Interest Entity [Line Items]    
Variable interest entity, current assets 1,537 498
Prepaid expenses and other current assets    
Variable Interest Entity [Line Items]    
Variable interest entity, current assets 245 190
Property and equipment, net    
Variable Interest Entity [Line Items]    
Variable interest entity, assets 285 0
Energy assets, net    
Variable Interest Entity [Line Items]    
Variable interest entity, assets 121,846 122,641
Operating lease assets    
Variable Interest Entity [Line Items]    
Variable interest entity, assets 6,086 0
Other assets    
Variable Interest Entity [Line Items]    
Variable interest entity, assets 1,635 1,613
Current portions of long-term debt and financing lease liabilities    
Variable Interest Entity [Line Items]    
Variable interest entity, current liabilities 2,268 1,712
Accounts payable    
Variable Interest Entity [Line Items]    
Variable interest entity, current liabilities 482 234
Accrued expenses and other current liabilities    
Variable Interest Entity [Line Items]    
Variable interest entity, current liabilities 3,642 4,146
Current portions of operating lease liabilities    
Variable Interest Entity [Line Items]    
Variable interest entity, current liabilities 87 0
Long-term debt and financing lease liabilities, less current portions and net of deferred financing fees    
Variable Interest Entity [Line Items]    
Variable interest entity, liabilities 25,989 26,461
Deferred income taxes, net    
Variable Interest Entity [Line Items]    
Variable interest entity, liabilities 460 0
Long-term portions of operating lease liabilities    
Variable Interest Entity [Line Items]    
Variable interest entity, liabilities 6,267 0
Other liabilities    
Variable Interest Entity [Line Items]    
Variable interest entity, liabilities $ 1,022 $ 2,131