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Long-term Debt - Narratives (Details) € in Thousands |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 08, 2018 USD ($) | Mar. 31, 2018 USD ($) | Mar. 31, 2018 EUR (€) | Dec. 31, 2017 USD ($)
Debt Instrument |  |  |  |
Long-term debt, fair value difference from carrying value |  | $ 32,972,000 |  | $ 59,319,000
Currency swap |  |  |  |
Debt Instrument |  |  |  |
Derivative instrument |  | 345,041,000 | € 280,000 |
Term Loan | New Term Loan Facility |  |  |  |
Debt Instrument |  |  |  |
Debt instrument face amount | $ 1,267,000,000 |  |  |
Scheduled repayment percentage | 0.25% |  |  |
Call premium | 1.00% |  |  |
Term Loan | New Term Loan Facility | LIBOR |  |  |  |
Debt Instrument |  |  |  |
Variable rate on spread | 2.50% |  |  |
Term Loan | Term Loan Facility |  |  |  |
Debt Instrument |  |  |  |
Debt extinguishment costs, financing costs |  | 2,124,000 |  |
Debt extinguishment costs, write-off of deferred financing costs |  | 1,403,000 |  |
Debt extinguishment costs, write-off of debt discounts |  | $ 2,352,000 |  |

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- Definition Debt Instrument, Call Premium + References No definition available. + Details
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- Definition Debt Instrument, Scheduled Repayment, Percentage Of Principal + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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- Definition Fair value as of the balance sheet date of all derivatives designated as foreign currency fair value hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
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- Definition Reflects the difference between the fair value of payments made to legally extinguish a debt and its carrying value at that time. This item excludes the write-off of amounts previously capitalized as debt issuance costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
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