Debt - Components of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Line of Credit Facility [Line Items]
Amortization of deferred financing costs	$ 240	$ 237	$ 490	$ 505
Interest Expense	1,193	1,995	2,746	4,218
Verde promissory note
Line of Credit Facility [Line Items]
Interest incurred	0	89	0	230
Subordinated debt
Line of Credit Facility [Line Items]
Interest incurred	0	0	0	4
Revolving Credit Facility | Senior Credit Facility
Line of Credit Facility [Line Items]
Interest incurred	516	1,179	1,427	2,621
Working Capital Facility
Line of Credit Facility [Line Items]
Letters of credit fees and commitment fees	$ 437	$ 490	$ 829	$ 858