Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Operating activities
Net income	$ 240,021	$ 189,602
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	22,819	18,144
Equity-based compensation	2,792	60
(Gain) loss on sale of assets	(292)	(227)
Provision for (recovery of) losses on accounts receivable	(23)	1,701
Accretion of original issue discount	706	915
Non-cash interest expense	3,210	3,698
Deferred income taxes	3,256	3,089
Loss on remeasurement of tax receivable agreement	79
Change in assets and liabilities, net of acquisitions:
Receivables and contracts in transit	(64,211)	(38,415)
Inventories	(150,653)	68,316
Prepaid expenses and other assets	(6,381)	(8,324)
Checks in excess of bank balance		(7,478)
Accounts payable and other accrued expenses	105,154	67,935
Payment pursuant to tax receivable agreement	(203)
Accrued rent for cease-use locations	(91)	286
Deferred revenue and gains	14,863	12,849
Other, net	37,053	3,876
Net cash provided by operating activities	208,099	316,027
Investing activities
Purchases of property and equipment	(49,759)	(29,203)
Purchase of real property	(16,820)	(12,871)
Proceeds from the sale of real property	6,000	7,291
Purchases of businesses, net of cash acquired	(345,140)	(67,690)
Proceeds from sale of property and equipment	603	3,486
Net cash used in investing activities	(405,116)	(98,987)
Financing activities
Proceeds from long-term debt	94,762	134,325
Payments on long-term debt	(5,550)	(43,615)
Net borrowings on notes payable - floor plan, net	174,497	(65,967)
Borrowings on revolver		12,000
Payments on revolver		(12,000)
Payments of principal on capital lease obligations	(950)	(1,111)
Payments of principal on right to use liability	(112)	(164)
Payment of debt issuance costs	(1,176)	(2,685)
Proceeds from issuance of Class A common stock sold in a public offering net of underwriter discounts, commissions and offering expenses	121,445
Dividends on Class A common stock	(11,874)
Members' distributions	(124,996)	(214,782)
Net cash provided by (used in) financing activities	246,046	(193,999)
Increase in cash	49,029	23,041
Cash at beginning of the period	114,196	92,025
Cash at end of the period	$ 163,225	$ 115,066