XML 42 R30.htm IDEA: XBRL DOCUMENT v3.7.0.1
Summary of Changes in Stockholders' Equity (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Jul. 31, 2017
Jul. 31, 2016
Balance as of April 30, 2017 $ 1,087,048 $ 1,047,301
Net income 29,429 4,068
Foreign currency translation adjustments 16,189 (13,274)
Deferred compensation and pension plan adjustments, net of tax 352 462
Net unrealized loss on interest rate swap, net of tax (63)  
Dividends paid to shareholders (5,823) (5,909)
Purchase of stock (7,372) (4,161)
Issuance of stock 4,586 2,784
Stock-based compensation 4,405 4,739
Tax benefit from exercise of stock options and vesting of restricted stock   332
Balance as of July 31, 2017 1,128,751 1,036,342
Parent    
Balance as of April 30, 2017 1,083,439 1,045,300
Net income 29,041 3,208
Foreign currency translation adjustments 16,084 (13,128)
Deferred compensation and pension plan adjustments, net of tax 352 462
Net unrealized loss on interest rate swap, net of tax (63)  
Dividends paid to shareholders (5,823) (5,909)
Purchase of stock (7,372) (4,161)
Issuance of stock 4,586 2,784
Stock-based compensation 4,405 4,739
Tax benefit from exercise of stock options and vesting of restricted stock   332
Balance as of July 31, 2017 1,124,649 1,033,627
Noncontrolling Interest    
Balance as of April 30, 2017 3,609 2,001
Net income 388 860
Foreign currency translation adjustments 105 (146)
Balance as of July 31, 2017 $ 4,102 $ 2,715