Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Net loss	$ (77,309)	$ (35,433)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization expense	4,645	1,824
Loss on disposal of property and equipment	565	0
Provision for bad debt and valuation allowance	494	684
Gain on loan sales	(8,390)	(3,792)
Equity-based compensation expense	2,102	283
Amortization and write-off of debt issuance costs	1,250	0
Originations of finance receivables	(223,843)	(100,955)
Proceeds from sale of finance receivables	231,942	166,748
Proceeds from sale of finance receivables to related party	0	1,531
Purchase of finance receivables from related party	0	(74,589)
Changes in assets and liabilities:
Accounts receivable	(8,293)	(874)
Vehicle inventory	11,668	(48,601)
Other current assets	(1,538)	(1,425)
Other assets	(1,148)	0
Accounts payable and accrued liabilities	942	6,779
Accounts payable to related party	285	(12,772)
Other liabilities	5,337	0
Net cash used in operating activities	(61,291)	(100,592)
Cash Flows from Investing Activities:
Purchases of property and equipment	(42,576)	(12,691)
Change in restricted cash	(73)	(1,642)
Net cash used in investing activities	(42,649)	(14,333)
Cash Flows from Financing Activities:
Proceeds from floor plan facility	397,082	161,241
Payments on floor plan facility	(395,555)	(129,048)
Proceeds from Verde Credit Facility	35,000	0
Payments on Verde Credit Facility	(35,000)	0
Proceeds from long-term debt	2,980	0
Payments on long-term debt	(641)	(47)
Payments of debt issuance costs, including $1,000 and $0 to related parties	(1,000)	(228)
Net proceeds from initial public offering	206,323	0
Net cash provided by financing activities	209,189	131,880
Net increase in cash and cash equivalents	105,249	16,955
Cash and cash equivalents at beginning of period	39,184	43,134
Cash and cash equivalents at end of period	144,433	60,089
Supplemental cash flow information:
Cash payments for interest to third parties	3,839	1,188
Cash payments for interest to related parties	382	30
Non-cash investing and financing activities:
Capital expenditures included in accounts payable and accrued liabilities	7,601	1,089
Capital expenditures financed through long-term debt	4,522	1,430
Tax withholdings related to equity awards included in accounts payable and accrued liabilities	299	0
Accrual of return on Class C redeemable preferred units	9,439	6,247
Class C subscription proceeds included in restricted cash and Class C subscription liability	0	9,725
Conversion of Class C units to Class A units	260,411	0
Class C Redeemable Preferred Units
Cash Flows from Financing Activities:
Proceeds from issuance of Class C redeemable preferred units	0	100,000
Net proceeds from initial public offering	$ 0	$ (38)