XML 117 R92.htm IDEA: XBRL DOCUMENT v3.19.2
Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Jun. 28, 2019
May 30, 2019
Apr. 17, 2019
Jan. 16, 2019
Oct. 24, 2018
Jul. 18, 2018
Apr. 30, 2019
Apr. 30, 2018
Apr. 30, 2017
Jul. 01, 2019
Dividend [Abstract]                    
Cash dividends     $ 18,600 $ 18,900 $ 18,900 $ 19,000 $ 75,752 $ 73,542 $ 71,545  
Class A Common Stock [Member]                    
Dividend [Abstract]                    
Common stock dividend (in dollars per share)             $ 1.32 $ 1.28 $ 1.24  
Class B Common [Member]                    
Dividend [Abstract]                    
Common stock dividend (in dollars per share)             $ 1.32 $ 1.28 $ 1.24  
Revolving Credit Facility [Member]                    
Amended and Restated Credit Agreement [Abstract]                    
Aggregate principal amount             $ 1,100,000      
Subsequent Event [Member] | Dividend Declared in Q1 2020 [Member]                    
Dividend [Abstract]                    
Cash dividends $ 19,200                  
Subsequent Event [Member] | Class A Common Stock [Member] | Dividend Declared in Q1 2020 [Member]                    
Dividend [Abstract]                    
Dividend declared date Jun. 28, 2019                  
Common stock dividend (in dollars per share) $ 0.34                  
Dividend payable date Jul. 24, 2019                  
Dividend record date Jul. 10, 2019                  
Subsequent Event [Member] | Class B Common [Member] | Dividend Declared in Q1 2020 [Member]                    
Dividend [Abstract]                    
Dividend declared date Jun. 28, 2019                  
Common stock dividend (in dollars per share) $ 0.34                  
Dividend payable date Jul. 24, 2019                  
Dividend record date Jul. 10, 2019                  
Subsequent Event [Member] | zybooks [Member]                    
Acquisition [Abstract]                    
Cash to be paid to equity shareholders of acquiree company                   $ 56,000
Subsequent Event [Member] | Revolving Credit Facility [Member]                    
Amended and Restated Credit Agreement [Abstract]                    
Term of credit facility   5 years                
Aggregate principal amount   $ 1,250,000                
Subsequent Event [Member] | Term Loan A Facility [Member]                    
Amended and Restated Credit Agreement [Abstract]                    
Term of credit facility   5 years                
Credit agreement face amount   $ 250,000                
Credit agreement issuance cost   $ 4,000