Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating activities
Net income	$ 25,816	$ 90,680
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	27,540	21,028
Equity-based compensation	6,579	6,347
Loss on debt restructure		1,676
Loss on disposal of assets	2,160	144
Provision for losses on accounts receivable	379	883
Non-cash lease expense	27,182
Accretion of original debt issuance discount	532	494
Non-cash interest	2,348	2,628
Deferred income taxes	16,615	4,765
Tax Receivable Agreement liability adjustment	(8,477)
Change in assets and liabilities, net of acquisitions:
Receivables and contracts in transit	(79,823)	(86,329)
Inventories	25,752	(35,707)
Prepaid expenses and other assets	7,082	(3,437)
Accounts payable and other accrued expenses	80,744	97,442
Payment pursuant to Tax Receivable Agreement	(9,425)	(8,100)
Accrued rent for cease-use locations	542	(547)
Deferred revenue and gains	1,088	8,362
Operating lease liability	(27,174)
Other, net	719	8,791
Net cash provided by operating activities	100,179	109,120
Investing activities
Purchases of property and equipment	(27,848)	(83,685)
Purchase of real property	(25,093)	(81,330)
Proceeds from the sale of real property	10,117
Purchases of businesses, net of cash acquired	(38,608)	(80,203)
Proceeds from sale of property and equipment	910	630
Net cash used in investing activities	(80,522)	(244,588)
Financing activities
Proceeds from long-term debt	11,662	319,913
Payments on long-term debt	(3,409)	(76,709)
Net payments on notes payable - floor plan, net	(29,426)	(68,049)
Borrowings on revolving line of credit	14,029	24,403
Payments of principal on finance lease obligations	(23)	(478)
Payments of principal on right to use liability		(78)
Payment of debt issuance costs	(47)	(3,120)
Dividends on Class A common stock	(11,410)	(11,326)
Proceeds from exercise of stock options		146
Repurchases of Class A common stock for withholding taxes on vested RSUs	(273)
Disgorgement of short-swing profits by Section 16 officer		557
Members' distributions	(38,057)	(61,511)
Net cash (used in) provided by financing activities	(56,954)	123,748
Decrease in cash and cash equivalents	(37,297)	(11,720)
Cash and cash equivalents at beginning of the period	138,557	224,163
Cash and cash equivalents at end of period	$ 101,260	$ 212,443