Quarterly report pursuant to Section 13 or 15(d)

Funds Held for Clients and Corporate Investments (Details 1)

v3.3.0.814
Funds Held for Clients and Corporate Investments (Details 1) - USD ($)
$ in Millions
Aug. 31, 2015
May. 31, 2015
Classification of investments on the Consolidated Balance Sheets    
Funds held for clients $ 3,748.4 $ 4,273.4
Corporate investments 81.8 366.6
Long-term corporate investments 416.2 399.8
Total funds held for clients and corporate investments, Fair value 4,246.4 5,039.8
Securities in an unrealized loss position    
Less than twelve months, Gross unrealized losses (2.9) (7.0)
Less than twelve months, Fair value 524.4 896.7
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve months or longer, Aggregate losses 0.4 0.5
Twelve months or longer, Fair value 30.6 26.3
Available-for-sale Securities, Continuous unrealized loss postition, Aggregate losses 3.3 7.5
Total, Fair value 555.0 923.0
Corporate bond securities [Member]    
Securities in an unrealized loss position    
Less than twelve months, Gross unrealized losses (0.3)  
Less than twelve months, Fair value 42.3  
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve months or longer, Aggregate losses 0.0  
Twelve months or longer, Fair value 0.0  
Available-for-sale Securities, Continuous unrealized loss postition, Aggregate losses 0.3  
Total, Fair value 42.3  
General obligation municipal bonds [Member]    
Securities in an unrealized loss position    
Less than twelve months, Gross unrealized losses (1.5) (3.8)
Less than twelve months, Fair value 298.9 535.1
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve months or longer, Aggregate losses 0.4 0.5
Twelve months or longer, Fair value 29.1 26.3
Available-for-sale Securities, Continuous unrealized loss postition, Aggregate losses 1.9 4.3
Total, Fair value 328.0 561.4
Revenue municipal bonds [Member]    
Securities in an unrealized loss position    
Less than twelve months, Gross unrealized losses (1.1) (3.2)
Less than twelve months, Fair value 183.2 361.6
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve months or longer, Aggregate losses 0.0 0.0
Twelve months or longer, Fair value 1.5 0.0
Available-for-sale Securities, Continuous unrealized loss postition, Aggregate losses 1.1 3.2
Total, Fair value $ 184.7 $ 361.6