Income Taxes (Details 3) - USD ($) $ in Thousands	Jul. 31, 2017	Jul. 31, 2016
Deferred tax assets:
Allowance for doubtful accounts	$ 1,177	$ 1,396
Accrued compensation and benefits	26,621	43,594
State taxes	215	638
Accrued other	2,684	3,018
Deferred revenue	371	545
Property and equipment	9,405	14,170
Losses carried forward	3,688	3,312
Federal tax benefit	10,542	10,757
Total gross deferred tax assets	53,961	76,340
Less: Valuation allowance	(6,455)	(5,420)
Net deferred tax assets	47,506	70,920
Deferred tax liabilities:
Vehicle pooling costs	(9,590)	(8,871)
Prepaid insurance	(1,333)	(1,142)
Intangibles and goodwill	(38,580)	(39,773)
Total gross deferred tax liabilities	(49,503)	(49,786)
Net deferred tax (liabilities) assets	(1,997)	21,134
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 13,000	$ 14,000

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions attributable to Federal tax benefit recognized only for tax purposes and which will reverse when recognized under generally accepted accounting principles.

No definition available.