Stockholders' Equity - (Details) $ / shares in Units, $ in Thousands								2 Months Ended	6 Months Ended		12 Months Ended
	May 03, 2017 USD ($) $ / shares shares	May 02, 2017 USD ($) vote $ / shares shares	Dec. 09, 2016 USD ($) shares	Jul. 12, 2016 USD ($) shares	Apr. 27, 2016 USD ($) shares	Jul. 27, 2015 USD ($) shares	Jul. 25, 2015	Jun. 30, 2017 USD ($) $ / shares shares	Jun. 30, 2017 USD ($) $ / shares shares	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) $ / shares shares
Limited Partners' Capital Account [Line Items]
Preferred stock, shares authorized (in shares)		50,000,000						50,000,000	50,000,000		50,000,000
Preferred stock, par value (in dollars per share) | $ / shares		$ 0.01						$ 0.01	$ 0.01		$ 0.01
Required ratio between shares issued and shares owned of subsidiary	0.8
Conversion ratio	0.8								1.25
Issuance of Class A common stock sold in initial public offering, net of underwriters' discounts and commissions and offering expenses | $								$ 205,925
Stock issuance costs charged against additional paid in capital | $	$ 4,700
Stock issuance costs | $											$ 1,300
Payments of stock issuance costs | $											$ 400
Class A Common Units
Limited Partners' Capital Account [Line Items]
Partners' capital account, units (in shares)	18,600,000
Class C Redeemable Preferred Units
Limited Partners' Capital Account [Line Items]
Payments of stock issuance costs | $									$ 0	$ 38
Temporary equity, coupon rate							12.50%
Class A
Limited Partners' Capital Account [Line Items]
Common stock, shares authorized (in shares)		500,000,000						500,000,000	500,000,000		500,000,000
Common stock, par value (in dollars per share) | $ / shares		$ 0.001						$ 0.001	$ 0.001		$ 0.001
Number of votes | vote		1
Class B
Limited Partners' Capital Account [Line Items]
Common stock, shares authorized (in shares)		125,000,000						125,000,000	125,000,000		125,000,000
Common stock, par value (in dollars per share) | $ / shares		$ 0.001						$ 0.001	$ 0.001		$ 0.001
Number of votes | vote		1
Conversion ratio	0.8
Common stock, shares issued (in shares)		117,200,000
Garcia Parties
Limited Partners' Capital Account [Line Items]
Ownership percentage of outstanding shares, minimum requirement		25.00%
Garcia Parties | Class B
Limited Partners' Capital Account [Line Items]
Number of votes | vote		10
Carvana Sub
Limited Partners' Capital Account [Line Items]
Percentage of voting power		0.10%
Ernest Garcia, II | Class A Common Units
Limited Partners' Capital Account [Line Items]
Investment owned, balance (in shares)	200,000
Interest acquired	0.10%
GV Auto I, LLC | Class C Redeemable Preferred Units
Limited Partners' Capital Account [Line Items]
Temporary equity, stock issued during period (in shares)				1,700,000
Temporary equity, value stock issued during period | $				$ 9,700
Fidel Family Trust | Class C Redeemable Preferred Units
Limited Partners' Capital Account [Line Items]
Temporary equity, stock issued during period (in shares)			500,000
Temporary equity, value stock issued during period | $			$ 2,700
IPO | Class A
Limited Partners' Capital Account [Line Items]
Sale of stock, number of shares issued in transaction (in shares)	15,000,000
Sale of stock, price per share (USD per share) | $ / shares	$ 15.00
Issuance of Class A common stock sold in initial public offering, net of underwriters' discounts and commissions and offering expenses | $	$ 205,900	$ 205,900
IPO | Class A | Class C Redeemable Preferred Units
Limited Partners' Capital Account [Line Items]
Temporary equity, conversion ratio if offering price as a percentage of original issuance price threshold exceeded (in shares)	1
Carvana Group | Class A Common Units
Limited Partners' Capital Account [Line Items]
Investment owned, balance (in shares)	18,800,000
LLC price per unit, multiple on initial public offering price less underwriting discounts and commissions (USD per share)	0.8
Affiliated Entity | CVAN Holdings, LLC | Class C Redeemable Preferred Units
Limited Partners' Capital Account [Line Items]
Temporary equity, stock issued during period (in shares)				8,600,000		14,100,000
Temporary equity, value stock issued during period | $				$ 50,000		$ 65,000
Investor | Class C Redeemable Preferred Units
Limited Partners' Capital Account [Line Items]
Temporary equity, stock issued during period (in shares)					18,300,000
Investor | Mr. Garcia | Class C Redeemable Preferred Units
Limited Partners' Capital Account [Line Items]
Temporary equity, value stock issued during period | $					$ 100,000
Carvana Group | Class A Common Units
Limited Partners' Capital Account [Line Items]
Common unit, outstanding (in shares)								165,800,000	165,800,000
Carvana Group | Class B Units
Limited Partners' Capital Account [Line Items]
Common unit, outstanding (in shares)								6,100,000	6,100,000