XML 26 R46.htm IDEA: XBRL DOCUMENT v2.4.0.8
Borrowing Limits Amounts Outstanding and Amounts Available Under Revolving Credit Facility (Detail) (Revolving Credit Facility, USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Oct. 04, 2013
Dec. 31, 2012
Revolving Credit Facility
     
Debt Instrument [Line Items]      
Revolving credit facility $ 120.0 $ 120.0 $ 60.0
Outstanding revolving credit facility 60.2   49.4
Available revolving credit facility $ 59.8   $ 10.6