Summary of Significant Accounting Policies (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Advertising Expense	$ 178,068us-gaap_AdvertisingExpense	$ 150,734us-gaap_AdvertisingExpense	$ 154,371us-gaap_AdvertisingExpense
Foreign Currency Transaction Gain (Loss), Realized	(23,729)	7,322	(231)
Accounts Receivable, Net, Noncurrent	$ 58,664us-gaap_AccountsReceivableNetNoncurrent	$ 48,380us-gaap_AccountsReceivableNetNoncurrent
Stockholders entitled election of Board of Directors	25.00%
Common Class A [Member]
Common Stock, Voting Rights	1
Common Stock, Conversion Basis	1
Common Class B [Member]
Common Stock, Voting Rights	10
Common Stock, Conversion Basis	1
Customer Concentration Risk [Member] \| Accounts Receivable [Member]
Concentration Risk, Percentage	15.00%
Maximum [Member]
Deferred Carriage Fees Contractual Period	13 years
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	100.00%

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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