Quarterly report pursuant to Section 13 or 15(d)

Funds Held for Clients and Corporate Investments (Details)

v3.3.1.900
Funds Held for Clients and Corporate Investments (Details) - USD ($)
$ in Millions
Nov. 30, 2015
May. 31, 2015
Type of issue:    
Funds held for clients money market securities and other cash equivalents, Amortized cost $ 1,288.1 $ 1,430.0
Funds held for clients money market securities and other cash equivalents Gross unrealized gains 0.0 0.0
Funds held for clients money market securities and other cash equivalents Gross unrealized losses 0.0 0.0
Funds held for clients money market securities and other cash equivalents, Fair value 1,288.1 1,430.0
Available-for-sale securities:    
Amortized cost 2,883.4 3,582.0
Available-for-sale securities, Gross unrealized gain, before tax 35.1 21.1
Available-for-sale securities, Gross unrealized loss, before tax (1.2) (7.5)
Fair value 2,917.3 3,595.6
Other, Amortized cost 14.2 12.7
Other, Gross unrealized gains 1.2 1.5
Other, Gross unrealized losses (0.1) 0.0
Other, Fair value 15.3 14.2
Total funds held for clients and corporate investments, Amortized cost 4,185.7 5,024.7
Funds held for clients and corporate investments Gross unrealized gains 36.3 22.6
Funds held for clients and corporate investments Gross unrealized losses (1.3) (7.5)
Total funds held for clients and corporate investments, Fair value 4,220.7 5,039.8
Corporate bonds [Member]    
Available-for-sale securities:    
Amortized cost 87.2  
Available-for-sale securities, Gross unrealized gain, before tax 0.6  
Available-for-sale securities, Gross unrealized loss, before tax (0.1)  
Fair value 87.7  
General obligation municipal bonds [Member]    
Available-for-sale securities:    
Amortized cost 1,676.5 1,694.0
Available-for-sale securities, Gross unrealized gain, before tax 21.4 14.0
Available-for-sale securities, Gross unrealized loss, before tax (0.5) (4.3)
Fair value 1,697.4 1,703.7
Pre-refunded municipal bonds [Member]    
Available-for-sale securities:    
Amortized cost 84.4 101.7
Available-for-sale securities, Gross unrealized gain, before tax 1.8 1.0
Available-for-sale securities, Gross unrealized loss, before tax 0.0 0.0
Fair value 86.2 102.7
Revenue municipal bonds [Member]    
Available-for-sale securities:    
Amortized cost 932.7 960.7
Available-for-sale securities, Gross unrealized gain, before tax 11.1 6.1
Available-for-sale securities, Gross unrealized loss, before tax (0.5) (3.2)
Fair value 943.3 963.6
U.S. government agency securities [Member]    
Available-for-sale securities:    
Amortized cost 87.9  
Available-for-sale securities, Gross unrealized gain, before tax 0.2  
Available-for-sale securities, Gross unrealized loss, before tax (0.1)  
Fair value 88.0  
Variable rate demand notes [Member]    
Available-for-sale securities:    
Amortized cost 14.7 825.6
Available-for-sale securities, Gross unrealized gain, before tax 0.0 0.0
Available-for-sale securities, Gross unrealized loss, before tax 0.0 0.0
Fair value $ 14.7 $ 825.6