Annual report pursuant to Section 13 and 15(d)

Summary of Acquisition (Parenthetical) (Detail)

v3.7.0.1
Summary of Acquisition (Parenthetical) (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 01, 2015
Apr. 30, 2017
Jan. 31, 2017
Oct. 31, 2016
Jul. 31, 2016
Apr. 30, 2016
Jan. 31, 2016
Oct. 31, 2015
Jul. 31, 2015
Apr. 30, 2017
Apr. 30, 2016
Apr. 30, 2015
Nov. 23, 2015
Mar. 01, 2015
Business Acquisition [Line Items]                            
Common stock, par value   $ 0.01       $ 0.01       $ 0.01 $ 0.01      
Fee revenue   $ 406,065,000 $ 381,918,000 $ 401,917,000 $ 375,621,000 $ 399,960,000 $ 344,158,000 $ 280,600,000 $ 267,394,000 $ 1,565,521,000 $ 1,292,112,000 $ 1,028,152,000    
Assets [1]   2,062,898,000       1,898,600,000       2,062,898,000 1,898,600,000 1,317,801,000    
Adjusted EBITDA                   234,976,000 190,229,000 161,691,000    
Acquisition of a business, purchase price   0       476,885,000 [2]       0 476,885,000 [2] 17,496,000 [3]    
Legacy Hay                            
Business Acquisition [Line Items]                            
Business combination, aggregate purchase price $ 476,900,000                          
Payment to acquire business $ 259,000,000                          
Business combination, Consideration Shares 5,922,136                          
Business combination, Consideration Shares value $ 217,900,000                          
Common stock, par value $ 0.01                          
Business combination, committed to retention pool for certain employees $ 40,000,000                          
Business combination, committed to retention pool for certain employees, paid                   9,000,000        
Business combination, committed to retention pool for certain employees, percentage payable within 45 days after November 30, 2017 50.00%                          
Business combination, committed to retention pool for certain employees, percentage payable within 45 days after November 30, 2018 50.00%                          
Fee revenue                     186,800,000      
Assets           740,200,000         740,200,000      
Adjusted EBITDA                     $ 28,500,000      
Adjusted EBITDA margin                     14.40%      
Pivot Leadership                            
Business Acquisition [Line Items]                            
Fee revenue                       3,700,000    
Assets                       $ 20,000,000    
Acquisition of a business, purchase price                           $ 17,500,000
Acquisition of a business, contingent consideration   6,500,000               6,500,000       $ 2,200,000
Tax deductible goodwill   7,400,000       7,400,000       7,400,000 $ 7,400,000      
Acquisition of a business, contingent consideration paid                   $ 1,100,000        
Pivot Leadership | Minimum                            
Business Acquisition [Line Items]                            
Business acquisition contingent consideration payable, through year                   2017        
Pivot Leadership | Maximum                            
Business Acquisition [Line Items]                            
Business acquisition contingent consideration payable, through year                   2020        
Foreign Locations | Legacy Hay                            
Business Acquisition [Line Items]                            
Payment to acquire business $ 54,000,000                          
Other Liabilities | Pivot Leadership                            
Business Acquisition [Line Items]                            
Acquisition of a business, contingent consideration fair value   $ 1,300,000       $ 3,000,000       $ 1,300,000 $ 3,000,000      
Term Facility                            
Business Acquisition [Line Items]                            
Senior unsecured loan, aggregate principal amount                         $ 150,000,000  
[1] As of the end of the fiscal year.
[2] On December 1, 2015, the Company completed its acquisition of Legacy Hay, a global leader in people strategy and organizational performance, for $476.9 million, net of cash acquired. The purchase price consisted of $259.0 million in cash ($54 million from foreign locations), net of estimated cash acquired and 5,922,136 shares of the Company's common stock, par value $0.01 per share (the "Consideration Shares"), representing an aggregate value of $217.9 million based on the closing price of the Company's common stock on The New York Stock Exchange on November 30, 2015. On November 23, 2015, the Company borrowed $150 million from the Term Facility, to finance a portion of the Legacy Hay acquisition purchase price. As part of the acquisition, the Company has committed to a $40 million retention pool (of which $9.0 million was paid in fiscal 2017) for certain employees of Legacy Hay subject to certain circumstances. Of the remaining balance, 50% will be payable within 45 days after November 30, 2017 and the remaining 50% will be payable within 45 days after November 30, 2018. The acquisition strengthens the Company's intellectual property, enhances our geographical presence, adds complimentary capabilities to further leverage search relationships and broadens capabilities for assessment and development. It improves our ability to support the global business community not only in attracting top talent and designing compensation and reward incentives, but also with an integrated approach to the entire leadership and people continuum. Actual results of operations of Legacy Hay are included in the Company's consolidated financial statements from December 1, 2015, the effective date of the acquisition, and includes $186.8 million, $740.2 million and $28.5 million in fee revenue, total assets and Adjusted EBITDA, respectively, with an Adjusted EBITDA margin of 14.4%, during fiscal 2016. Legacy Hay is included in the Hay Group segment.
[3] On March 1, 2015, the Company acquired all outstanding membership interests of Pivot Leadership, a global provider of innovative, customized and scalable executive development programs, for $17.5 million, net of cash acquired, which includes $2.2 million in contingent consideration. As of April 30, 2017 and 2016, the fair value of the contingent consideration is $1.3 million and $3.0 million and is included in other liabilities in the accompanying consolidated balance sheets. The contingent consideration is based on the achievement of certain revenue targets and can be up to $6.5 million, payable in four installments in fiscal 2017 to 2020. In fiscal 2017, the Company paid $1.1 million due to meeting certain revenue targets. The acquisition allows us to integrate the Company's talent management solution with Pivot's executive learning capabilities. Actual results of operations of Pivot Leadership are included in the Company's consolidated financial statements from March 1, 2015, the effective date of the acquisition, and includes $3.7 million and $20.0 million in fee revenue and total assets, respectively, during fiscal 2015. Tax deductible goodwill from the Pivot Leadership acquisition was $7.4 million as of April 30, 2017 and 2016.