Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions |
9 Months Ended | |
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Sep. 30, 2017 |
Jan. 01, 2017 |
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| ASU 2016-09 | Additional Paid-in Capital | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Cumulative effect | $ 1.2 | |
| ASU 2016-09 | Pro Forma | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Deferred tax asset | $ 142.0 | |
| Minimum | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Requisite service period | 3 years | |
| Maximum | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Requisite service period | 4 years |
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- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. No definition available.
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. No definition available.
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