Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016
Revenues	$ 1,805,695	$ 1,447,981	$ 1,268,449
Operating expenses:
Yard operations	846,868	678,401	582,904
Cost of vehicle sales	196,461	137,552	140,959
General and administrative	176,890	151,364	138,116
Impairment of long-lived assets	1,131	19,365	0
Total operating expenses	1,221,350	986,682	861,979
Operating income	584,345	461,299	406,470
Other (expense) income:
Interest expense	(20,368)	(23,779)	(23,606)
Interest income	1,293	1,406	1,449
Other income (expense), net	(2,759)	1,174	11,552
Total other expense	(21,834)	(21,199)	(10,605)
Income before income tax expense	562,511	440,100	395,865
Income tax expense	144,504	45,839	125,505
Net income	418,007	394,261	270,360
Net income attributable to noncontrolling interest	140	34	0
Net income attributable to Copart, Inc.	$ 417,867	$ 394,227	$ 270,360
Basic net income per common share	$ 1.80	$ 1.72	$ 1.18
Weighted average common shares outstanding	231,793	228,686	228,846
Diluted weighted average common shares outstanding	241,877	237,019	244,295
Diluted net income per common share	$ 1.73	$ 1.66	$ 1.11
Service revenues
Revenues	$ 1,578,502	$ 1,286,252	$ 1,104,379
Vehicle sales
Revenues	227,193	161,729	164,070
International [Member]
Operating expenses:
Impairment of long-lived assets	1,157
Operating Segments [Member] | International [Member]
Revenues	314,673	254,793	252,413
Operating expenses:
Yard operations	116,003	92,814	88,758
Cost of vehicle sales	95,331	76,068	85,093
General and administrative	32,750	20,972	19,801
Impairment of long-lived assets	1,131	0
Operating income	69,458	64,939	58,761
Other (expense) income:
Other income (expense), net	526	1,184	10,336
Income before income tax expense	60,550	54,574	56,852
Income tax expense	8,368	10,854	9,838
Net income attributable to Copart, Inc.	$ 52,182	$ 43,720	$ 47,014