Annual report pursuant to Section 13 and 15(d)

Business combinations and disposal Business combinations and disposals - Assessments Australia (Details)

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Business combinations and disposal Business combinations and disposals - Assessments Australia (Details)
$ in Thousands
12 Months Ended
Dec. 15, 2015
USD ($)
company
Sep. 30, 2016
USD ($)
Business combinations    
Goodwill   $ 21,453
Assessments Australia    
Business combinations    
Share capital acquired (as a percent) 100.00%  
Number of businesses acquired | company 3  
Cash consideration $ 2,600  
Contingent consideration arrangements, range of outcomes, value, high 500  
Intangible assets 400  
Human Services | Assessments Australia    
Business combinations    
Goodwill $ 2,900 $ 2,899
Customer relationships | Assessments Australia    
Business combinations    
Useful life 6 years