Summary of Significant Accounting Policies - Leases - General Information (Details) $ in Thousands |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2019 |
Jan. 01, 2019
USD ($)
|
Dec. 31, 2017
USD ($)
|
|
| Summary of Significant Accounting Policies | |||
| Cumulative effect of applying new accounting standards | $ 0 | $ 8,645 | |
| Option to extend | true | ||
| Option to terminate | true | ||
| Number of buildings have Coterminous termination point | 2 |
| X | ||||||||||
- Definition Represents the number of buildings have coterminous termination point. No definition available.
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| X | ||||||||||
- References 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 Indicates (true false) whether lessee has option to extend operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Indicates (true false) whether lessee has option to terminate operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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