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Long-Term Debt - Additional Information (Details) - USD ($) |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Oct. 15, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt |  | $ 16,500,000 |  | $ 16,500,000 |  | $ 20,300,000
Repayments of long-term debt |  |  |  | 382,730,000 | $ 1,332,293,000 |
Net investment hedge, (loss) gain |  | (7,395,000) | $ (3,407,000) | (10,312,000) | $ 39,709,000 |
September 2015 Term Loan Agreement |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unamortized debt issuance costs |  | $ 2,008,000 |  | 2,008,000 |  | $ 2,833,000
364 Day Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument term | 364 days |  |  |  |  |
Principal amount of debt | $ 300,000,000 |  |  |  |  |
Repayments of long-term debt |  |  |  | 300,000,000.0 |  |
Five Year Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument term | 5 years |  |  |  |  |
Principal amount of debt | $ 950,000,000 |  |  |  |  |
Repayments of long-term debt |  |  |  | $ 81,000,000 |  |
Commercial Paper |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Weighted average interest rate |  | 1.38% |  | 1.38% |  |
Debt instrument maturity period |  |  |  | 39 days |  |
1.875% Senior Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt instrument, interest rate |  | 1.875% |  | 1.875% |  | 1.875%
Long-Term Debt Excluding Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unamortized debt issuance costs |  |  |  |  |  | $ 17,100,000

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