Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating activities
Net income	$ 49,441	$ 37,780
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,853	5,891
Equity-based compensation	719
Gain on sale of assets	(318)	(24)
Provision for losses on accounts receivable	(20)	269
Accretion of original issue discount	257	302
Non-cash interest	1,169	1,249
Deferred income taxes	1,103	121
Gain on remeasurement of tax receivable agreement	(17)
Change in assets and liabilities, net of acquisitions:
Receivables and contracts in transit	(44,263)	(41,435)
Inventories	(60,943)	(114,230)
Prepaid expenses and other assets	1,350	(4,291)
Checks in excess of bank balance		4,464
Accounts payable and other accrued expenses	59,501	49,472
Accrued rent for cease-use locations	121	(73)
Deferred revenue and gains	(2,801)	(2,557)
Other, net	2,622	(1,039)
Net cash provided by (used in) operating activities	14,774	(64,101)
Investing activities
Purchases of property and equipment	(10,029)	(7,023)
Purchase of real property	(6,024)	(9,482)
Proceeds from the sale of real property		1,244
Purchases of businesses, net of cash acquired	(75,448)	(60,251)
Proceeds from sale of property and equipment	379	2,708
Net cash used in investing activities	(91,122)	(72,804)
Financing activities
Proceeds from long-term debt	94,762
Payments on long-term debt	(1,850)	(10,020)
Net borrowings on notes payable - floor plan, net	70,348	103,896
Payments of principal on capital lease obligations	(357)	(416)
Payments of principal on right to use liability	(36)	(56)
Payment of debt issuance costs	(1,171)
Dividends on Class A common stock	(2,903)
Members' distributions	(21,907)	(28,568)
Net cash provided by financing activities	136,886	64,836
Increase (decrease) in cash	60,538	(72,069)
Cash at beginning of the period	114,196	92,025
Cash at end of the period	$ 174,734	$ 19,956