Exit Activity Costs - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2013
Asset Impairment And Closure Costs [Line Items]
Termination benefits recorded	$ 2.5
Business
Asset Impairment And Closure Costs [Line Items]
Asset impairment charges	5.1
Direct to consumer
Asset Impairment And Closure Costs [Line Items]
Asset impairment charges	2.0
Media Library
Asset Impairment And Closure Costs [Line Items]
Asset impairment charges	4.4
Advances
Asset Impairment And Closure Costs [Line Items]
Asset impairment charges	1.5
Property and Equipment
Asset Impairment And Closure Costs [Line Items]
Asset impairment charges	$ 1.3