Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Jan. 01, 2019 |
Mar. 31, 2019 |
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| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
| Right-of-use assets | $ 31,136,000 | |
| Lease liability | $ 31,705,000 | |
| Accounting Standards Update 2016-02 | ||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | ||
| Estimated incremental borrowing rate for estimation of present value of lease payments | 9.00% | |
| Cumulative-effect adjustment on accumulated deficit | $ 0 | |
| Right-of-use assets | 32,800,000 | |
| Lease liability | 33,200,000 | |
| Derecognized deferred rent | $ 399,000 |
| X | ||||||||||
- Definition Derecognition of deferred rent. No definition available.
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| X | ||||||||||
- Definition The estimated incremental borrowings rate for estimation of present value of remaining lease payments. No definition available.
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| X | ||||||||||
- 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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| X | ||||||||||
- 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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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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