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Commitments and Contingencies - Litigation (Details) |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 27, 2016 USD ($) | Mar. 03, 2015 item | Dec. 31, 2015 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |
Loss contingency accrual |  |  |  | $ 0 | $ 2,355,000
DePinto vs John S Stafford Litigation Case |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Number of claims | item |  | 2 |  |  |
Insurance proceeds |  |  | $ 187,500 |  |
Paid legal award | $ 2,375,000 |  | $ 950,000 |  |
Amount paid not covered by insurance | $ 0 |  |  |  |

X
- Definition Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 + Details
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- Definition Amount awarded to other party in judgment or settlement of litigation. + References No definition available. + Details
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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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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 + Details
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- Definition The total number of new claims filed pertaining to a loss contingency during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349 + Details
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- Definition The amount paid relating to a litigation settlement that is not covered by insurance. + References No definition available. + Details
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- Details
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