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Debt - Interest Rates (Details) | 6 Months Ended
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Jun. 30, 2018
Revolving Credit Facility | Credit Agreement — Revolving Credit Facility | Eurocurrency Rate |
Debt Instrument [Line Items] |
Line of credit facility, interest rate at period end | 1.30%
Revolving Credit Facility | Credit Agreement — Revolving Credit Facility | Eurocurrency Rate | Minimum |
Debt Instrument [Line Items] |
Debt instrument, basis spread on variable rate | 1.00%
Revolving Credit Facility | Credit Agreement — Revolving Credit Facility | Eurocurrency Rate | Maximum |
Debt Instrument [Line Items] |
Debt instrument, basis spread on variable rate | 1.60%
Revolving Credit Facility | Credit Agreement — Revolving Credit Facility | Base Rate |
Debt Instrument [Line Items] |
Line of credit facility, interest rate at period end | 0.30%
Revolving Credit Facility | Credit Agreement — Revolving Credit Facility | Base Rate | Minimum |
Debt Instrument [Line Items] |
Debt instrument, basis spread on variable rate | 0.00%
Revolving Credit Facility | Credit Agreement — Revolving Credit Facility | Base Rate | Maximum |
Debt Instrument [Line Items] |
Debt instrument, basis spread on variable rate | 0.60%
Term Loan Facility | Credit Agreement- Term Loan Facility | Eurocurrency Rate |
Debt Instrument [Line Items] |
Line of credit facility, interest rate at period end | 1.50%
Term Loan Facility | Credit Agreement- Term Loan Facility | Eurocurrency Rate | Minimum |
Debt Instrument [Line Items] |
Debt instrument, basis spread on variable rate | 1.125%
Term Loan Facility | Credit Agreement- Term Loan Facility | Eurocurrency Rate | Maximum |
Debt Instrument [Line Items] |
Debt instrument, basis spread on variable rate | 1.90%
Term Loan Facility | Credit Agreement- Term Loan Facility | Base Rate |
Debt Instrument [Line Items] |
Line of credit facility, interest rate at period end | 0.50%
Term Loan Facility | Credit Agreement- Term Loan Facility | Base Rate | Minimum |
Debt Instrument [Line Items] |
Debt instrument, basis spread on variable rate | 0.125%
Term Loan Facility | Credit Agreement- Term Loan Facility | Base Rate | Maximum |
Debt Instrument [Line Items] |
Debt instrument, basis spread on variable rate | 0.90%

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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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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The effective interest rate at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
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Balance Type: |
Period Type: |

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- Details
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Balance Type: |
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- Details
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Balance Type: |
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- Details
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- Details
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- Details
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- Details
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- Details
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