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Stockholders' Equity (Deficit) - Summary of Unrecognized Compensation Cost for Non-vested Restricted Shares (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2018 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized compensation costs of non-vested cash awards excluded | $ 0.9
Weighted average remaining contractual life (in years) | 1 year 2 months 12 days
Non-current liabilities | $ 1.4
Restricted Stock |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation Costs | $ 25.2
Weighted Average to be recognized (in years) | 1 year 4 months
Restricted Stock Units (RSUs) |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Unrecognized Compensation Costs | $ 10.9
Weighted Average to be recognized (in years) | 1 year 3 months

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- Definition Share based compensation arrangement by share based payment award equity instruments other than options share based liabilities, non-current. + References No definition available. + Details
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- Definition Share based compensation arrangement by share based payment award non vested cash awards weighted average remaining contractual life. + References No definition available. + Details
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- Definition Unrecognized cost of unvested share-based compensation awards. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + 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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