Intangible Assets (Details) (USD $) In Thousands	9 Months Ended
Sep. 30, 2011
Summary of the changes in the carrying amount of goodwill and franchise value
Goodwill, Beginning Balance	$ 807,874
Goodwill, additions	107,498
Goodwill, foreign currency translation	61
Goodwill, Ending Balance	915,433
Franchise value, Beginning Balance	203,401
Franchise value, Additions	29,491
Franchise value, foreign currency translation	(78)
Franchise value, Ending Balance	$ 232,814

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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+ 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

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-Name Statement of Financial Accounting Standard (FAS)

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+ Details