Quarterly report pursuant to Section 13 or 15(d)

Business Combination (Narrative) (Details)

v3.8.0.1
Business Combination (Narrative) (Details)
$ in Millions
3 Months Ended
Aug. 31, 2017
USD ($)
state
Business Acquisition [Line Items]  
Goodwill acquired $ 40.9
HR Outsourcing, Inc. [Member]  
Business Acquisition [Line Items]  
Effective acquisition date Aug. 18, 2017
Purchase price $ 75.4
Cash portion of purchase price 42.2
Common stock issued portion of purchase price 33.2
Goodwill acquired $ 40.9
HR Outsourcing, Inc. [Member] | Minimum [Member]  
Business Acquisition [Line Items]  
Number of states in which HR Solutions services are provided | state 35