XML 44 R26.htm IDEA: XBRL DOCUMENT v2.4.0.6
Intangible Assets Including Goodwill - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Finite-Lived Intangible Assets [Line Items]    
Impairment charge $ 25.0  
Amortization expense 0.1 0.1
2013 0.4  
2014 0.4  
2015 0.4  
2016 0.4  
2017 $ 0.3