| Date | Form | Description | XBRL | |
|---|---|---|---|---|
| 05/15/18 | Quarterly report pursuant to Section 13 or 15(d) |
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| 05/15/18 | Current report filing |
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| 02/14/18 | Quarterly report pursuant to Section 13 or 15(d) |
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| 02/14/18 | Current report filing |
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| 02/13/18 | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions |
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| 02/13/18 | Current report filing |
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| 02/12/18 | Current report filing |
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| 01/16/18 | Current report filing |
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| 12/22/17 | Initial registration statement for securities to be offered to employees pursuant to employee benefit plans |
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| 12/14/17 | Current report filing |
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