Goodwill and Intangible Assets - Gross Carrying Amount and Accumulated Amortization of Intangible Assets Other Than Goodwill (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended	3 Months Ended
Sep. 30, 2013 Trademarks	Dec. 31, 2013 Trademarks	Mar. 31, 2013 Favorable Lease
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Asset impairment charges		$ 4.4
Write off finite-lived intangible asset	$ 1.5		$ 3.5

Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275

Name:	us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration