Rendering

Component: (Network and Table)
Network
2407403 - Disclosure - Goodwill and intangibles - Changes in Carrying Amount of Goodwill (Detail)
(http://www.advisory.com/role/GoodwillAndIntangiblesChangesInCarryingAmountOfGoodwillDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001157377 (http://www.sec.gov/CIK)
Goodwill and Intangible Assets Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-04-01 - 2014-12-31
Goodwill and Intangible Assets Disclosure [Abstract]
 
 
 
Goodwill [Roll Forward]
 
 
 
Beginning of period
738,200,000  
186,895,000  
 
Goodwill acquired
2,258,000  
650,289,000  
 
Goodwill impairment
0  
(99,145,000) 
0  
Purchase accounting adjustment
(951,000) 
161,000  
 
Ending balance
739,507,000  
 
738,200,000  
 
186,895,000