Property and Equipment, net - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended	1 Months Ended
Jun. 30, 2012	Jun. 30, 2013 New Jersey Casino Reinvestment Development Authority (CRDA) [Member]	Jun. 30, 2013 Mississippi [Member]	Mar. 31, 2012 Mississippi [Member]	Mar. 31, 2012 Spain
Property, Plant and Equipment [Line Items]
Tangible asset impairment charges	$ 174.0	$ 22.4	$ 79.3	$ 167.5	$ 6.5

The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230

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