Annual report pursuant to Section 13 and 15(d)

Property and Equipment, Net (Detail)

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Property and Equipment, Net (Detail) - USD ($)
$ in Thousands
Apr. 30, 2017
Apr. 30, 2016
Apr. 30, 2015
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 278,124 $ 253,799  
Less: accumulated depreciation and amortization (168,557) (158,363)  
Property and equipment, net [1] 109,567 95,436 $ 62,088
Computer equipment and software      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross [2] 160,399 148,769  
Leasehold improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 75,921 59,858  
Furniture and fixtures      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 39,848 43,069  
Automobiles      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 1,956 $ 2,103  
[1] As of the end of the fiscal year.
[2] Depreciation expense for capitalized software was $12.6 million, $11.3 million and $9.0 million during fiscal 2017, 2016 and 2015, respectively. The net book value of the Company's computer software costs included in property and equipment, net was $33.2 million and $32.3 million as of April 30, 2017 and 2016, respectively.