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Consolidated Statement of Changes in Member's Deficit (USD $) In Thousands, except Share data, unless otherwise specified | Total USD ($) | Class A common stock [Member] | Class B common stock [Member] | Class C common stock [Member] | Noncontrolling Interest [Member] USD ($) | Common Stock [Member] USD ($) | Additional Paid In Capital [Member] USD ($) | Accumulated Deficit [Member] USD ($) | Accumulated Other Comprehensive Loss [Member] USD ($) | Treasury Stock [Member] USD ($)
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Balances at Dec. 31, 2011 | $ (7,471,941)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |  |  |  | $ 521,794 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | $ 83 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 2,132,368 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ (9,857,267)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ (266,043)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | $ (2,876)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
SharesOutstanding Beginning at Dec. 31, 2011 |  | 24,106,139 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 555,556 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 58,967,502 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassCMember |  |  |  |  |  |
Increase Decrease In Stockholders Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Net income (loss) | (411,190)us-gaap_ProfitLoss |  |  |  | 13,289 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  | (424,479)us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |  |
Issuance (forfeiture) of restricted stock | 3,091 us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures |  |  |  | 6,381 us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 4 us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (4)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | (3,290)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Amortization of share-based compensation | 28,540 us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation |  |  |  | 10,589 us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  | 17,951 us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Purchases of additional noncontrolling interest | 28 us-gaap_MinorityInterestDecreaseFromRedemptions |  |  |  | 28 us-gaap_MinorityInterestDecreaseFromRedemptions / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  |  |
Dividend declared and paid | (244,734)us-gaap_Dividends |  |  |  | (244,734)us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  |  |
Other | (17,622)us-gaap_StockIssuedDuringPeriodValueOther |  |  |  | (9,228)us-gaap_StockIssuedDuringPeriodValueOther / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  | (8,394)us-gaap_StockIssuedDuringPeriodValueOther / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Other comprehensive income | 118,637 us-gaap_OtherComprehensiveIncomeLossNetOfTax |  |  |  | 5,878 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  | 112,759 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |
Issuance (forfeiture) of restricted stock |  | 3,543,238 us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |  |  |  |  |  |  |
Balances at Dec. 31, 2012 | (7,995,191)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |  |  |  | 303,997 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 87 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 2,141,921 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | (10,281,746)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (153,284)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | (6,166)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
SharesOutstanding Ending at Dec. 31, 2012 |  | 27,649,377 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 555,556 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 58,967,502 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassCMember |  |  |  |  |  |
Increase Decrease In Stockholders Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Net income (loss) | (583,517)us-gaap_ProfitLoss |  |  |  | 23,366 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  | (606,883)us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |  |
Issuance (forfeiture) of restricted stock | 3,769 us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures |  |  |  | 4,192 us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 2 us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (2)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | (423)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Amortization of share-based compensation | 16,715 us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation |  |  |  | 7,725 us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  | 8,990 us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Dividend declared and paid | (91,887)us-gaap_Dividends |  |  |  | (91,887)us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  |  |
Other | (1,259)us-gaap_StockIssuedDuringPeriodValueOther |  |  |  | 614 us-gaap_StockIssuedDuringPeriodValueOther / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  | (2,606)us-gaap_StockIssuedDuringPeriodValueOther / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 733 us-gaap_StockIssuedDuringPeriodValueOther / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Other comprehensive income | (45,265)us-gaap_OtherComprehensiveIncomeLossNetOfTax |  |  |  | (2,476)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  | (42,789)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |
Issuance (forfeiture) of restricted stock |  | 1,855,002 us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |  |  |  |  |  |  |
Balances at Dec. 31, 2013 | (8,696,635)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |  |  |  | 245,531 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | 89 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 2,148,303 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | (10,888,629)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (196,073)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | (5,856)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
SharesOutstanding Ending at Dec. 31, 2013 |  | 29,504,379 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 555,556 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 58,967,502 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassCMember |  |  |  |  |  |
Increase Decrease In Stockholders Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Net income (loss) | (762,158)us-gaap_ProfitLoss |  |  |  | 31,603 us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  | (793,761)us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |  |
Issuance (forfeiture) of restricted stock | 1,244 us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures |  |  |  | 2,237 us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  |  | (993)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Amortization of share-based compensation | 10,713 us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation |  |  |  | 7,743 us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  | 2,970 us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  |
Purchases of additional noncontrolling interest | (48,750)us-gaap_MinorityInterestDecreaseFromRedemptions |  |  |  | (1,944)us-gaap_MinorityInterestDecreaseFromRedemptions / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  | (42,881)us-gaap_MinorityInterestDecreaseFromRedemptions / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  | (3,925)us-gaap_MinorityInterestDecreaseFromRedemptions / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |
Dividend declared and paid | (40,027)us-gaap_Dividends |  |  |  | (40,027)us-gaap_Dividends / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  |  |
Other | 77 us-gaap_StockIssuedDuringPeriodValueOther |  |  |  | 77 us-gaap_StockIssuedDuringPeriodValueOther / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  | (5,603)us-gaap_StockIssuedDuringPeriodValueOther / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |  | 5,603 us-gaap_StockIssuedDuringPeriodValueOther / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
Other comprehensive income | (129,672)us-gaap_OtherComprehensiveIncomeLossNetOfTax |  |  |  | (21,080)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |  |  |  | (108,592)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember |
Issuance (forfeiture) of restricted stock |  | (196,796)us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |  |  |  |  |  |  |
Balances at Dec. 31, 2014 | $ (9,665,208)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |  |  |  | $ 224,140 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember | $ 89 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ 2,102,789 us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ (11,682,390)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ (308,590)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember | $ (1,246)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember
SharesOutstanding Ending at Dec. 31, 2014 |  | 29,307,583 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 555,556 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember | 58,967,502 us-gaap_SharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassCMember |  |  |  |  |  |

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