v2.4.0.6

Subsequent Event (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Subsequent Event
Net revenues	$ 798,246,000	$ 736,059,000
Income from operations	133,315,000	142,615,000
Pending Litigation | Argosy Casino Sioux City facility | Belle of Sioux City, L.P. (the "Belle")
Subsequent Event
Goodwill and other intangible assets	92,800,000
Net revenues	14,000,000
Income from operations	3,700,000
Net revenues, percentage	1.80%
Income from operations, percentage	2.80%
Pending Litigation | Argosy Casino Sioux City facility | Belle of Sioux City, L.P. (the "Belle") | Second quarter of 2013 | Minimum
Subsequent Event
Goodwill and other intangible impairment charge	65,000,000
Pending Litigation | Argosy Casino Sioux City facility | Belle of Sioux City, L.P. (the "Belle") | Second quarter of 2013 | Maximum
Subsequent Event
Goodwill and other intangible impairment charge	$ 80,000,000

X

- Definition

Represents the properties income from operations as a percentage of the Company's consolidated income from operations recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process).

+ References

No definition available.

+ Details

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X

- Definition

Represents the properties revenue as a percentage of the Company's consolidated total revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process).

+ References

No definition available.

+ Details

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X

- Definition

Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

+ References

No definition available.

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- Definition

Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance.

+ References

No definition available.

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

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X

- Definition

Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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