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Derivatives and Fair Value Measurements - Financial Instruments Measured on Recurring Basis (Details) - Successor - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Dec. 31, 2017
Foreign currency cash flow hedge contracts |  |
Derivative [Line Items] |  |
Transfers Between Hierarchy Levels | $ 0 |
Fair Value, Measurements, Recurring |  |
Derivative [Line Items] |  |
Derivative Assets (Liabilities), at Fair Value, Net | 2,300,000 | $ 4,200,000
Fair Value, Measurements, Recurring | Foreign currency cash flow hedge contracts |  |
Derivative [Line Items] |  |
Derivative Assets (Liabilities), at Fair Value, Net | 2,300,000 | 4,200,000
Level 1 | Fair Value, Measurements, Recurring |  |
Derivative [Line Items] |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 | 0
Level 1 | Fair Value, Measurements, Recurring | Foreign currency cash flow hedge contracts |  |
Derivative [Line Items] |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 | 0
Level 2 | Fair Value, Measurements, Recurring |  |
Derivative [Line Items] |  |
Derivative Assets (Liabilities), at Fair Value, Net | 2,300,000 | 4,200,000
Level 2 | Fair Value, Measurements, Recurring | Foreign currency cash flow hedge contracts |  |
Derivative [Line Items] |  |
Derivative Assets (Liabilities), at Fair Value, Net | 2,300,000 | 4,200,000
Level 3 | Fair Value, Measurements, Recurring |  |
Derivative [Line Items] |  |
Derivative Assets (Liabilities), at Fair Value, Net | 0 | 0
Level 3 | Fair Value, Measurements, Recurring | Foreign currency cash flow hedge contracts |  |
Derivative [Line Items] |  |
Derivative Assets (Liabilities), at Fair Value, Net | $ 0 | $ 0

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- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative 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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