Acquisitions and Discontinued Operations - Schedule of Change in Fair Value of Level 3 Victory Seller Note (Parenthetical) (Detail) (Level 3 [Member], Seller Note [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Level 3 [Member] | Seller Note [Member]
Changes In Level 3 Assets And Liabilities Measured At Fair Value On Recurring Basis [Line Items]
Purchases transfer	$ 0
Sales transfer	0
Issuances transfer	$ 0