Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Service revenues and vehicle sales:
Service revenues	$ 332,346	$ 303,507	$ 949,457	$ 814,891
Vehicle sales	41,516	43,739	119,928	120,899
Total service revenues and vehicle sales	373,862	347,246	1,069,385	935,790
Operating expenses:
Yard operations	166,572	151,855	503,264	428,729
Cost of vehicle sales	34,785	37,744	101,558	103,939
General and administrative	35,717	35,699	114,071	102,843
Total operating expenses	237,074	225,298	718,893	635,511
Operating income	136,788	121,948	350,492	300,279
Other (expense) income:
Interest expense	(5,869)	(5,702)	(17,972)	(16,996)
Interest income	363	283	1,084	1,096
Other (expense) income, net	(194)	39	117	5,501
Total other expenses	(5,700)	(5,380)	(16,771)	(10,399)
Income before income taxes	131,088	116,568	333,721	289,880
Income tax expense	40,542	41,944	9,829	103,642
Net income	$ 90,546	$ 74,624	$ 323,892	$ 186,238
Basic net income per common share	$ 0.39	$ 0.34	$ 1.42	$ 0.80
Weighted average common shares outstanding	229,920	221,088	228,146	234,142
Diluted net income per common share	$ 0.38	$ 0.32	$ 1.37	$ 0.75
Diluted weighted average common shares outstanding	237,135	236,412	236,808	248,780