Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 30, 2013
Summary of the changes in the carrying amount of goodwill and franchise value
Goodwill, Beginning Balance	$ 978,147
Goodwill, Additions	7,303
Goodwill, Deconsolidation of Italian investment	(7,231)
Goodwill, Foreign currency translation	(22,039)
Goodwill, Ending Balance	956,180
Franchise value, Beginning Balance	283,152
Franchise value, Deconsolidation of Italian investment	(2,908)
Franchise value, Foreign currency translation	(5,258)
Franchise value, Ending Balance	274,986
Intangible assets
Goodwill	956,180
Goodwill, Additions	7,303
Retail
Summary of the changes in the carrying amount of goodwill and franchise value
Goodwill, Ending Balance	948,431
Intangible assets
Goodwill	948,431
Other
Summary of the changes in the carrying amount of goodwill and franchise value
Goodwill, Additions	5,780
Goodwill, Ending Balance	7,749
Intangible assets
Goodwill	7,749
Goodwill, Additions	$ 5,780

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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+ Details

- Definition

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

+ References+ Details

- Definition

The increase (decrease) in the recorded value of goodwill for foreign currency translation adjustments and purchase accounting adjustments needed to revise the carrying amount of goodwill to fair value.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 72

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details