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Stockholders' Equity - Schedule of Stockholders' Equity (Details) - USD ($) shares in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Jan. 01, 2018 | Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  | $ 1,587,282,000 |  |  |
Adoption of accounting standards |  |  |  |  |  | $ 4,330,000
Balance, adjusted |  |  |  |  |  | 1,591,612,000
Non-cash stock compensation |  |  | 3,931,000 |  |  |
Vesting of restricted stock, net of shares withheld to satisfy tax withholding |  |  | (1,744,000) |  |  |
Distributions to noncontrolling interest holders |  |  | (892,000) |  |  |
Change in noncontrolling interests |  |  | (23,773,000) |  |  |
Accretion of redeemable noncontrolling interest and equity |  |  | (61,974,000) |  |  |
Reclassification of redeemable noncontrolling interests and equity |  |  | 19,000 |  |  |
Net income | $ 223,954,000 | $ 117,098,000 | 395,499,000 | $ (3,256,000) |  |
Foreign currency translation adjustment, net of tax of $0 | (196,672,000) | 28,455,000 | (113,303,000) | 131,851,000 |  |
Unrealized gain on derivatives, net of tax of $0 | 10,126,000 | 3,507,000 | 12,336,000 | 6,099,000 |  |
Minimum pension liability adjustment, net of tax of $0 |  |  | 376,000 |  |  |
Balance, end of period | 2,115,104,000 |  | 2,115,104,000 |  |  |
Foreign currency translation adjustment, tax | 0 | 0 | 0 | 0 |  |
Unrealized gain on derivative instruments, tax | 0 | 0 | 0 | 0 |  |
Pension adjustment, tax |  |  | 0 | 0 |  |
Retained earnings | (548,617,000) |  | (548,617,000) |  |  | (946,236,000)
Additional paid-in capital |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  | 3,446,206,000 |  |  |
Balance, adjusted |  |  |  |  |  | 3,446,206,000
Non-cash stock compensation |  |  | 3,931,000 |  |  |
Vesting of restricted stock, net of shares withheld to satisfy tax withholding |  |  | (1,746,000) |  |  |
Change in noncontrolling interests |  |  | (468,000) |  |  |
Balance, end of period | 3,698,822,000 |  | 3,698,822,000 |  |  |
(Accumulated deficit) retained earnings |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  | (946,236,000) |  |  |
Adoption of accounting standards |  |  |  |  |  | 4,330,000
Balance, adjusted |  |  |  |  |  | (941,906,000)
Net income |  |  | 393,289,000 |  |  |
Balance, end of period | (548,617,000) |  | (548,617,000) |  |  |
Accumulated other comprehensive (loss) income |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  | (925,556,000) |  |  |
Balance, adjusted |  |  |  |  |  | (925,556,000)
Foreign currency translation adjustment, net of tax of $0 |  |  | (113,495,000) |  |  |
Unrealized gain on derivatives, net of tax of $0 |  |  | 12,336,000 |  |  |
Minimum pension liability adjustment, net of tax of $0 |  |  | 376,000 |  |  |
Balance, end of period | (1,026,339,000) |  | (1,026,339,000) |  |  |
Non-controlling interests |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance, beginning of period |  |  | 12,118,000 |  |  |
Balance, adjusted |  |  |  |  |  | 12,118,000
Distributions to noncontrolling interest holders |  |  | (892,000) |  |  |
Change in noncontrolling interests |  |  | (23,305,000) |  |  |
Reclassification of redeemable noncontrolling interests and equity |  |  | 19,000 |  |  |
Net income |  |  | 2,210,000 |  |  |
Foreign currency translation adjustment, net of tax of $0 |  |  | 192,000 |  |  |
Balance, end of period | $ (9,658,000) |  | $ (9,658,000) |  |  |
Class A Common Stock |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance of shares outstanding, beginning of period (in shares) |  |  | 55,052 |  |  |
Balance of shares outstanding, end of period (in shares) | 91,614 |  | 91,614 |  |  |
Class A Common Stock | Common Stock |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance of shares outstanding, beginning of period (in shares) |  |  | 55,052 |  |  |
Balance, beginning of period |  |  | $ 220,000 |  |  |
Balance, adjusted |  |  |  |  |  | 220,000
Conversion of Class B shares to Class A shares |  |  | 86 |  |  |
Vesting of restricted stock, net of shares withheld to satisfy tax withholding (in shares) |  |  | 333 |  |  |
Vesting of restricted stock, net of shares withheld to satisfy tax withholding |  |  | $ 2,000 |  |  |
Balance of shares outstanding, end of period (in shares) | 91,614 |  | 91,614 |  |  |
Balance, end of period | $ 366,000 |  | $ 366,000 |  |  |
Class B Common Stock |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance of shares outstanding, beginning of period (in shares) |  |  | 132,443 |  |  |
Balance of shares outstanding, end of period (in shares) | 132,416 |  | 132,416 |  |  |
Class B Common Stock | Common Stock |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Balance of shares outstanding, beginning of period (in shares) |  |  | 132,443 |  |  |
Balance, beginning of period |  |  | $ 530,000 |  |  |
Balance, adjusted |  |  |  |  |  | $ 530,000
Conversion of Class B shares to Class A shares |  |  | (86) |  |  |
Vesting of restricted stock, net of shares withheld to satisfy tax withholding (in shares) |  |  | 59 |  |  |
Balance of shares outstanding, end of period (in shares) | 132,416 |  | 132,416 |  |  |
Balance, end of period | $ 530,000 |  | $ 530,000 |  |  |
Redeemable noncontrolling interests and equity |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Accretion of redeemable noncontrolling interest and equity |  |  | 806,000 |  |  |
Redeemable noncontrolling interests and equity | Additional paid-in capital |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Accretion of redeemable noncontrolling interest and equity |  |  | 806,000 |  |  |
Series A Convertible Redeemable Preferred Stock |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Accretion of redeemable noncontrolling interest and equity | (4,650,000) | $ (61,934,000) | (61,974,000) | $ (101,194,000) |  |
Gain upon conversion of Series A Preferred Stock |  |  | 74,110,000 |  |  |
Reclassification of Series A Preferred Stock upon conversion |  |  | $ 238,101,000 |  |  |
Series A Convertible Redeemable Preferred Stock | Common Stock |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Reclassification of Series A Preferred Stock upon conversion (in shares) |  |  | 36,143 |  |  |
Reclassification of Series A Preferred Stock upon conversion |  |  | $ 144,000 |  |  |
Series A Convertible Redeemable Preferred Stock | Additional paid-in capital |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Accretion of redeemable noncontrolling interest and equity |  |  | (61,974,000) |  |  |
Gain upon conversion of Series A Preferred Stock |  |  | 74,110,000 |  |  |
Reclassification of Series A Preferred Stock upon conversion |  |  | 237,957,000 |  |  |
ASU 2014-09 | Adjustment |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income |  |  | 4,787,000 |  |  |
Retained earnings | $ 6,204,000 |  | $ 6,204,000 |  | $ 1,400,000 |
ASU 2016-16 |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Retained earnings |  |  |  |  | $ 2,900,000 |

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