Annual report pursuant to Section 13 and 15(d)

Organization and Summary of Significant Accounting Policies - Summary of Effect of Changes to Consolidated Balance Sheet (Detail)

v3.19.2
Organization and Summary of Significant Accounting Policies - Summary of Effect of Changes to Consolidated Balance Sheet (Detail) - USD ($)
$ in Thousands
Apr. 30, 2019
May 01, 2018
Apr. 30, 2018
Apr. 30, 2017
Apr. 30, 2016
Revenue Initial Application Period Cumulative Effect Transition [Line Items]          
Total assets [1] $ 2,334,852   $ 2,287,914 $ 2,062,898  
Total liabilities 1,091,465   1,068,299    
Total stockholders’ equity $ 1,243,387   $ 1,219,615 $ 1,087,048 $ 1,047,301
Accounting Standards Update 2014-09          
Revenue Initial Application Period Cumulative Effect Transition [Line Items]          
Total assets   $ 2,291,410      
Total liabilities   1,065,139      
Total stockholders’ equity   1,226,271      
Adjustments Due to ASC 606 | Accounting Standards Update 2014-09          
Revenue Initial Application Period Cumulative Effect Transition [Line Items]          
Total assets   3,496      
Total liabilities   (3,160)      
Total stockholders’ equity   $ 6,656      
[1] As of the end of the fiscal year.