v3.8.0.1

Summary of Significant Accounting Policies - Schedule Of Property, Software And Equipment Depreciation Periods (Details) | 12 Months Ended
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Dec. 31, 2017
Buildings and land improvements | Minimum |
Property, Plant and Equipment [Line Items] |
Fixed Asset - depreciation period | 5 years
Buildings and land improvements | Maximum |
Property, Plant and Equipment [Line Items] |
Fixed Asset - depreciation period | 40 years
Computer hardware and software | Minimum |
Property, Plant and Equipment [Line Items] |
Fixed Asset - depreciation period | 2 years
Computer hardware and software | Maximum |
Property, Plant and Equipment [Line Items] |
Fixed Asset - depreciation period | 7 years
Furniture and equipment | Minimum |
Property, Plant and Equipment [Line Items] |
Fixed Asset - depreciation period | 3 years
Furniture and equipment | Maximum |
Property, Plant and Equipment [Line Items] |
Fixed Asset - depreciation period | 10 years
Land improvements | Minimum |
Property, Plant and Equipment [Line Items] |
Fixed Asset - depreciation period | 3 years
Land improvements | Maximum |
Property, Plant and Equipment [Line Items] |
Fixed Asset - depreciation period | 20 years
Leasehold improvements | Minimum |
Property, Plant and Equipment [Line Items] |
Fixed Asset - depreciation period | 1 year
Leasehold improvements | Maximum |
Property, Plant and Equipment [Line Items] |
Fixed Asset - depreciation period | 20 years

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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 Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Data Type: | na
Balance Type: |
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- Details
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Data Type: | na
Balance Type: |
Period Type: |